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iot-bus Documentation, Release latest

11.3 esp-idf-lib Components

Component

Description

License

Thread
safety

i2cdev

I2C utilities

MIT

Yes

ds1307

Driver for DS1307 RTC module

BSD

Yes

ds3231

Driver for DS3231 high precision RTC module

MIT

Yes

hmc5883l

Driver for HMC5883L 3-axis digital compass

BSD

Yes

onewire

Bit-banging one wire driver

MIT*

No

ds18x20

Driver for DS18B20/DS18S20 families of one-wire temperature
sensor ICs

BSD

No

dht

Driver for DHT11/DHT22 temperature and humidity sensors

BSD

No

bmp180

Driver for BMP180 digital pressure sensor

MIT

Yes

bmp280

Driver for BMP280/BME280 digital pressure sensor

MIT

Yes

bh1750

Driver for BH1750 light sensor

BSD

Yes

ultrasonic

Driver for ultrasonic range meters, e.g. HC-SR04, HY-SRF05

BSD

No

pcf8574

Driver for PCF8574 remote 8-bit I/O expander for I2C-bus

MIT

Yes

hd44780

Universal driver for HD44780 LCD display

BSD

No

pca9685

Driver for 16-channel, 12-bit PWM PCA9685

BSD

Yes

ms5611

Driver for barometic pressure sensor MS5611-01BA03

BSD

Yes

ads111x

Driver for ADS1113/ADS1114/ADS1115 I2C ADC

BSD

Yes

pcf8591

Driver for 8-bit ADC and an 8-bit DAC PCF8591

BSD

Yes

tsl2561

Driver for light-to-digital converter TSL2561

BSD

Yes

max7219

Driver for 8-Digit LED display drivers, MAX7219/MAX7221

BSD

Yes

mcp23017

Driver for 16-bit I2C GPIO expander

BSD

Yes

tda74xx

Driver for TDA7439/TDA7439DS/TDA7440D audio-processors

MIT

Yes

11.4 Schematic

11.5 Platforms

Name

Description

Espres-
sif32

Espressif Systems is a privately held fabless semiconductor company. They provide wireless communica-
tions and Wi-Fi chips which are widely used in mobile devices and the Internet of Things applications.

11.3. esp-idf-lib Components

37

Summary of Contents for IoT-Bus

Page 1: ...iot bus Documentation Release latest oddWires Mar 05 2019...

Page 2: ......

Page 3: ...uino 19 6 Getting Started with esp idf 21 7 Getting Started with Mozilla IoT 23 8 Getting Started with Micro Python 29 9 Getting Started with Moddable 31 10 Getting Started with MicroBlocks 33 11 Io 3...

Page 4: ...IoT Bus LED Thing 97 31 IoT Bus LED Lamp Thing 99 32 IoT Bus Relay Thing 103 33 IoT Bus Relay Display Touch Thing 105 34 IoT Bus Window and Door Sensor Thing 111 35 IoT Bus DHT11 Thing 113 36 IoT Bus...

Page 5: ...iot bus Documentation Release latest IoT Bus Introduction 1...

Page 6: ...iot bus Documentation Release latest 2 IoT Bus Introduction...

Page 7: ...d build on adaptable tested with many solutions already available There are no lock in costs and overall it provide a low cost solution for faster development of professional educational and hobbyist...

Page 8: ...4 Touch TFT QVGA Display Available Solder able Prototype Board with Controller IOT Ready Relay and Motor Controller Multiple open platforms Supports C MicroPython and javascript At the heart of the sy...

Page 9: ...Io Very small and breadboard friendly with option of male female or both stackable headers Includes a dual core 240 MHz ESP32 with WiFi and Bluetooth You can use the WiFi both in station device mode a...

Page 10: ...ve JTAG debugging support You can use OpenOCD and GDB in combination to use it but our recommendation is to use PlatformIO PlatformIO has taken away all the hard work of configuring OpenOCD and GDB Yo...

Page 11: ...ffering plug and play display output and touch sensing together with a 4 bit SD MMC SD Card We picked 2 4 over 2 8 as it has a crisper display at 320 x 240 res olution and its slightly smaller size he...

Page 12: ...ver that en ables you to use the onboard ESP32 CAN controller You can connect the terminals to any required connection LoRa This IoT Bus mod ule uti lizes the Hope RFM95 to of fer low cost LoRa ra dio...

Page 13: ...0 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness LoRa also pro vides sig nif i cant ad van tages in both block ing and se l...

Page 14: ...board driven by a single digital pin It is a 110V 10A maximum AC relay board in the IoT Bus form factor Motor This IoT Bus mod ule provides a motor controller It uses two TB6612FNG mo tor drivers cont...

Page 15: ...y used in mobile devices and the Internet of Things applications 1 9 Frameworks Name Description Ar duino Arduino Wiring based Framework allows writing cross platform software to control devices attac...

Page 16: ...iot bus Documentation Release latest 12 Chapter 1 IoT Bus Overview...

Page 17: ...CHAPTER 2 IoT Bus Pinout 13...

Page 18: ...iot bus Documentation Release latest Fig 1 IoT Bus Pinout 14 Chapter 2 IoT Bus Pinout...

Page 19: ...programmer or a serious hobbyist then you will probably pick PlatformIO There are other environments that are just fine if you already use them like Eclipse or NetBeans But if you are investing your...

Page 20: ...vers for it and a whole development infrastructure that has sprung up around it And Moddable is the company that just does javascript right We ll show you later in this section how to get started with...

Page 21: ...board here 4 Git clone or download the IoT Bus examples from Github https github com iot bus iot bus examples platformio 5 Plug in IoT Bus Io Open the iot bus blink example and run Onboard LED should...

Page 22: ...iot bus Documentation Release latest 18 Chapter 4 Getting Started with PlatformIO...

Page 23: ...instructions 2 Install the Espressif32 platform package Start Arduino and open Preferences window Enter https dl espressif com dl package_esp32_index json into Additional Board Manager URLs field You...

Page 24: ...iot bus Documentation Release latest 20 Chapter 5 Getting Started with Arduino...

Page 25: ...e It s much easier using platformIO because it does all the hard work behind the scenes However it maybe useful to see the steps involved See Getting Started with Platformio for the easy way to use es...

Page 26: ...iot bus Documentation Release latest 22 Chapter 6 Getting Started with esp idf...

Page 27: ...e Setup If you didn t buy a Mozilla IoT get from oddWires which includes an SD Card flashed with the Mozilla IoT Gateway you will need to download gateway image as a zip file from here Expand it and f...

Page 28: ...connected to that same network in order to continue setup If you re directly connected via ethernet you do not need to do this Next you ll be asked to choose a unique subdomain for your gateway which...

Page 29: ...choose your own domain name if you don t want to use the tunneling service but you ll need to generate your own SSL certificate and configure DNS yourself This is the screen you will see You will then...

Page 30: ...ay and will be ready to start adding things Note that the gateway s web interface is a Progressive Web App that you can add to home screen on your smartphone with Firefox Now you should see this scree...

Page 31: ...ched adapters into pairing mode Follow the instructions for your individual device to pair it with the gateway this often involves pressing a button on the device while the gateway is in pairing mode...

Page 32: ...iot bus Documentation Release latest 28 Chapter 7 Getting Started with Mozilla IoT...

Page 33: ...load the firmware from this location For convenience this is a link to an ESP32 binary esp32 20180924 v1 9 4 575 g6ea6c7cc9 bin You will need esptool py available right here If you are putting MicroPy...

Page 34: ...iot bus Documentation Release latest 30 Chapter 8 Getting Started with Micro Python...

Page 35: ...CHAPTER 9 Getting Started with Moddable You can find details on Getting Started with Moddable here 31...

Page 36: ...iot bus Documentation Release latest 32 Chapter 9 Getting Started with Moddable...

Page 37: ...tions that require precision timing autonomous operation or physically embedding the processor into projects For example one might write a program to record acceleration data then embed the microcontr...

Page 38: ...iot bus Documentation Release latest 34 Chapter 10 Getting Started with MicroBlocks...

Page 39: ...access point mode It includes traditional Bluetooth as well as BLE 4 0 On board is a 3 3V regulator and a battery charging device that enables you to switch between using USB or battery power The batt...

Page 40: ...SP32 ArduinoJson Io Proteus Arduino C JSON library for IoT Simple and efficient arduino Lora LoRa Arduino Sandeep Mistry s arduino LoRa library Arduino CAN CAN Bus Arduino Sandeep Mistry s Arduino CAN...

Page 41: ...BSD No pcf8574 Driver for PCF8574 remote 8 bit I O expander for I2C bus MIT Yes hd44780 Universal driver for HD44780 LCD display BSD No pca9685 Driver for 16 channel 12 bit PWM PCA9685 BSD Yes ms5611...

Page 42: ...ramework allows writing cross platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding interactive objects spaces or physical experiences...

Page 43: ...iFi both in station device mode and access point mode It includes traditional Bluetooth as well as BLE 4 0 On board is a 3 3V regulator and a battery charging device that enables you to switch between...

Page 44: ...he Proteus includes both 3 3V and 5V rails Both these rails are available whether powered by the USB or the battery as the 5V is derived from the lower voltage Buy it in the oddWires store 12 1 Pins U...

Page 45: ...ports from esp open rtos 12 3 esp idf lib Components Component Description License Thread safety i2cdev I2C utilities MIT Yes ds1307 Driver for DS1307 RTC module BSD Yes ds3231 Driver for DS3231 high...

Page 46: ...used in mobile devices and the Internet of Things applications 12 6 Frameworks Name Description Ar duino Arduino Wiring based Framework allows writing cross platform software to control devices attac...

Page 47: ...r JTAG board is based on the FT232H and it enables comprehensive JTAG debugging support You can use OpenOCD and GDB in combination to use it but our recommendation is to use PlatformIO PlatformIO has...

Page 48: ...debug_tool iot bus jtag 13 2 Pins Used IOT Bus JTAG Pin Board JTAG Pin 3V3 Positive Supply Voltage Power supply for JTAG interface drivers GND GND Digital Ground 12 TDI Test Data In pin 14 TMS Test M...

Page 49: ...amework allows writing cross platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding interactive objects spaces or physical experiences E...

Page 50: ...iot bus Documentation Release latest 46 Chapter 13 JTAG...

Page 51: ...output and touch sensing together with a 4 bit SDMMC SD Card We picked 2 4 over 2 8 as it has a crisper dis play at 320 x 240 resolution and its slightly smaller size helps in IoT applications Design...

Page 52: ...rd 14 CLK SD Card 15 CMD SD 16 SS Touch Screen 17 IRQ Touch Screen 18 SCK TFT 19 MISO TFT 23 MOSI TFT 27 DC TFT 33 Backlight TFT you will not see anything if you do not turn on the backlight EN RESET...

Page 53: ...y has been forked to setup defaults XPT2046_Touchscreen Arduino Fork of Paul Stoffgren s XPT2046_Touchscreen library ESP32_TFT_library esp idf loboris TFT library for ESP32 14 3 Schematic Click image...

Page 54: ...iot bus Documentation Release latest 50 Chapter 14 2 4 QVGA Touch Display...

Page 55: ...CHAPTER 15 Motor Buy it in the oddWires store 15 1 Pins Used IOT Bus Pin Description 21 SDA 22 SCL 3V3 Power GND Ground 51...

Page 56: ...They provide wireless communica tions and Wi Fi chips which are widely used in mobile devices and the Internet of Things applications 15 5 Frameworks Name Description Ar duino Arduino Wiring based Fr...

Page 57: ...to isolated relay board driven by a single digital pin It is a 110V 10A maximum AC relay board in the IoT Bus form factor Buy it in the oddWires store 16 1 Pins Used IOT Bus Pin Description 17 Relay 1...

Page 58: ...ch are widely used in mobile devices and the Internet of Things applications 16 4 Frameworks Name Description Ar duino Arduino Wiring based Framework allows writing cross platform software to control...

Page 59: ...CHAPTER 17 CAN Bus Buy it in the oddWires store 17 1 Pins Used IOT Bus Pin Description 4 CAN Bus RXD 5 CAN Bus TXD Note CAN Bus cannot be used at the same time as LoRa 55...

Page 60: ...fabless semiconductor company They provide wireless communica tions and Wi Fi chips which are widely used in mobile devices and the Internet of Things applications 17 5 Frameworks Name Description Ar...

Page 61: ...over 148dBm using a low cost crystal and bill of materials The high sensitivity combined with the integrated 20 dBm power amplifier yields industry leading link budget making it optimal for any appli...

Page 62: ...Fully integrated synthesizer with a resolution of 61 Hz FSK GFSK MSK GMSK LoRa and OOK modulation Built in bit synchronizer for clock recovery Preamble detection 127 dB Dynamic Range RSSI Automatic RF...

Page 63: ...the same time as CAN Bus 18 2 Libraries Name Framework Description arduino Lora Arduino Sandeep Mistry s arduino LoRa library 18 3 Schematic Click image to enlarge 18 4 Platforms Name Description Esp...

Page 64: ...amework allows writing cross platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding interactive objects spaces or physical experiences E...

Page 65: ...at are described in this section are a subset of the examples in the repository If you run through these examples you ll discover how to use each of them Blink Get started with the ubiquitous Blink an...

Page 66: ...iot bus Documentation Release latest 62 Chapter 19 IoT Bus Examples Index...

Page 67: ...s line sets the GPIO pin into output mode pinMode LEDPin OUTPUT This line turns on the LED digitalWrite LEDPin HIGH This line turns off the LED digitalWrite LEDPin LOW This line creates 1 second delay...

Page 68: ...nction runs over and over again forever void loop digitalWrite LEDPin HIGH turn the LED on HIGH is the voltage level delay 1000 wait for a second digitalWrite LEDPin LOW turn the LED off by making the...

Page 69: ...char password Enter the ssid and password of the local WiFi network you want to connect to Serial begin 115200 WiFi begin ssid password while WiFi status WL_CONNECTED delay 1000 Serial println Connect...

Page 70: ...Start the web server The full example include WiFi h include AsyncTCP h include ESPAsyncWebServer h const char ssid const char password AsyncWebServer server 80 void setup Serial begin 115200 WiFi beg...

Page 71: ...a very similar way include touchscreen library include XPT2046_Touchscreen h Call up the TFT driver library include TFT_eSPI h Hardware specific library include SPI h Invoke custom TFT driver library...

Page 72: ...ft init These lines initialize and calibrate the touchscreen and display Set the TFT and touch screen to landscape orientation tft setRotation 1 ts setRotation 1 Rotation 0 and 2 are portrait and 1 an...

Page 73: ...uchscreen h Call up the TFT driver library include TFT_eSPI h Hardware specific library include SPI h Invoke custom TFT driver library TFT_eSPI tft TFT_eSPI Invoke custom library These pins are define...

Page 74: ...n tft setCursor ts getWidth swatchWidth 1 5 3 2 x y font tft setTextColor TFT_WHITE tft print Clear tft drawRect 0 0 ts getWidth 1 swatchHeight TFT_WHITE Plot the current colour in the screen clear bo...

Page 75: ...ght ts getWidth ts getHeight 1 color Serial println clear screen to current color else color colors p x swatchWidth Update the current color in the clear box tft fillRect ts getWidth swatchWidth 20 12...

Page 76: ...iot bus Documentation Release latest 72 Chapter 22 IoT Bus Touch Draw Example...

Page 77: ...lude arduino h define RelayPin 17 the setup function runs once when you press reset or power the board void setup initialize digital pin Relay_BUILTIN as an output pinMode RelayPin OUTPUT Serial begin...

Page 78: ...iot bus Documentation Release latest 74 Chapter 23 IoT Bus Relay Example...

Page 79: ...up Serial begin 115200 start the CAN bus at 1000 kbps if CAN begin 1000E3 Serial println Starting CAN failed while 1 Include the CAN Bus library and start it up at 1Mbps CAN beginPacket 0x12 CAN write...

Page 80: ...he CAN bus at 1000 kbps if CAN begin 1000E3 Serial println Starting CAN failed while 1 void loop send packet id is 11 bits packet can contain up to 8 bytes of data Serial print Sending packet CAN begi...

Page 81: ...eived See if we have received a packet and get its size if CAN packetExtended Serial print extended Identify an extended packet if CAN packetRtr Remote transmission request packet contains no data Ser...

Page 82: ...tarting CAN failed while 1 void loop try to parse packet int packetSize CAN parsePacket if packetSize received a packet Serial print Received if CAN packetExtended Serial print extended if CAN packetR...

Page 83: ...e SS 5 define RESET 17 int counter 0 void setup LoRa setPins SS RESET DIO0 These lines include the libraries required and define the DIO0 SS and RESET pins required to use the IoT BUs LoRa board if Lo...

Page 84: ...if LoRa begin 915E6 Serial println Starting LoRa failed while 1 void loop Serial print Sending packet Serial println counter send packet LoRa beginPacket LoRa print hello LoRa print counter LoRa endPa...

Page 85: ...char LoRa read These lines will read the packet until there s no more data Serial println LoRa packetRssi This line will print out the signal strength indicator include SPI h include LoRa h define DIO...

Page 86: ...t bus Documentation Release latest continued from previous page Serial print char LoRa read print RSSI of packet Serial print with RSSI Serial println LoRa packetRssi 82 Chapter 25 IoT Bus LoRa Exampl...

Page 87: ...ary libraries and create a motor controller at address 0x5F You can change the solder jumpers on the board for another address between 0x40 and 0x5F Connect a stepper motor with 200 steps per revoluti...

Page 88: ...afruit_MotorShield AFMS Adafruit_MotorShield 0x5F Connect a stepper motor with 200 steps per revolution 1 8 degree to motor port 2 M3 and M4 Adafruit_StepperMotor myMotor AFMS getStepper 200 1 void se...

Page 89: ...d Type if cardType CARD_MMC Serial println MMC else if cardType CARD_SD Serial println SDSC else if cardType CARD_SDHC Serial println SDHC else Serial println UNKNOWN uint64_t cardSize SD_MMC cardSize...

Page 90: ...MMC include FS h include SD_MMC h include driver gpio h include SPI h void listDir fs FS fs const char dirname uint8_t levels Serial printf Listing directory s n dirname File root fs open dirname if r...

Page 91: ...ile while file available Serial write file read void writeFile fs FS fs const char path const char message Serial printf Writing file s n path File file fs open path FILE_WRITE if file Serial println...

Page 92: ...void testFileIO fs FS fs const char path File file fs open path static uint8_t buf 512 size_t len 0 uint32_t start millis uint32_t end start if file len file size size_t flen len start millis while l...

Page 93: ...e if cardType CARD_MMC Serial println MMC else if cardType CARD_SD Serial println SDSC else if cardType CARD_SDHC Serial println SDHC else Serial println UNKNOWN uint64_t cardSize SD_MMC cardSize 1024...

Page 94: ...iot bus Documentation Release latest 90 Chapter 27 IoT Bus SD_MMC Card Example...

Page 95: ...s iot bus mozilla iot examples arduino Examples in ino format You will need to install required libraries separately In each example you will have to enter your ssid and password within the main cpp f...

Page 96: ...PI Of course if you are using other libraries for sensors or your own you can include them here and PlatformIO will locate and install them LED Thing This example creates a Thing that enables the buil...

Page 97: ...ouch switch Thing that triggers when one of the capacitive touch pins on the ESP32 are touched It sets the on board LED on triggering and updates the mozilla iot interface appropriately Connect a wire...

Page 98: ...iot bus Documentation Release latest 94 Chapter 28 IoT Bus Mozilla IoT Examples...

Page 99: ...es a touch sensor to detect input and turn on a LED int ledPin 5 choose the pin for the LED int touchPin 4 choose the input pin T0 is the same as GPIO4 WebThingAdapter adapter const char sensorTypes b...

Page 100: ...e MOZ IoT thing adapter new WebThingAdapter adapter WiFi localIP touch addProperty touched adapter addDevice touch adapter begin pinMode ledPin OUTPUT declare LED as output void loop int val touchRead...

Page 101: ...file You can obtain one at http mozilla org MPL 2 0 include Arduino h include Thing h include WebThingAdapter h TODO Hardcode your wifi credentials here and keep it private const char ssid const char...

Page 102: ...rite ledPin HIGH active low led Serial println Serial print Connected to Serial println ssid Serial print IP address Serial println WiFi localIP adapter new WebThingAdapter w25 WiFi localIP led addPro...

Page 103: ...ributed with this file You can obtain one at http mozilla org MPL 2 0 include Arduino h include Thing h include WebThingAdapter h define MIN a b a b a b const char ssid const char password if defined...

Page 104: ...d setup void pinMode lampPin OUTPUT digitalWrite lampPin LOW initially off Setup timer and attach timer to a led pin ledcSetup LEDC_CHANNEL_0 LEDC_BASE_FREQ LEDC_TIMER_13_BIT ledcAttachPin lampPin LED...

Page 105: ...oop void adapter update if lampOn getValue boolean int level map lampLevel getValue number 0 100 0 255 Serial println lampLevel getValue number ledcAnalogWrite LEDC_CHANNEL_0 level analogWrite lampPin...

Page 106: ...iot bus Documentation Release latest 102 Chapter 31 IoT Bus LED Lamp Thing...

Page 107: ...elayPin 17 IoT Bus relay WebThingAdapter adapter const char relayTypes SmartPlug nullptr ThingDevice relay relay IoT Bus Relay relayTypes ThingProperty relayOn on BOOLEAN OnOffProperty bool lastOn fal...

Page 108: ...P Initialize MOZ IoT thing adapter new WebThingAdapter adapter WiFi localIP relay addProperty relayOn adapter addDevice relay adapter begin Serial println HTTP server started Serial print http Serial...

Page 109: ...t be on GPIO17 and PENIRQ not used TFT OK either way Graphics and Touch include TFT_eSPI h include XPT2046_Touchscreen h We use modified version that maps from raw to pixel and matches screen orientat...

Page 110: ...ThingDevice relay Relay IoT Bus Relay relayTypes ThingProperty relayOn on BOOLEAN OnOffProperty remember last state bool lastOn false the setup function runs once when you press reset or power the bo...

Page 111: ...alue value void loop bool on relayOn getValue boolean if touched true on on invert status lastOn on invert status value boolean on relayOn setValue value delay 300 avoid touch bounce update status ada...

Page 112: ...1 bgColor sockets tft fillRoundRect LEFT_SOCKET_X LEFT_SOCKET_Y SOCKET_WIDTH SOCKET_HEIGHT SOCKET_RADIUS socketColor tft fillRoundRect RIGHT_SOCKET_X RIGHT_SOCKET_Y SOCKET_WIDTH SOCKET_HEIGHT SOCKET_R...

Page 113: ...H bgColor F tft fillRect TEXT_2_X TEXT_2_Y STROKE_WIDTH TEXT_HEIGHT textColor tft fillRect TEXT_2_X TEXT_2_Y TEXT_WIDTH STROKE_WIDTH textColor tft fillRect TEXT_2_X TEXT_2_Y TEXT_HEIGHT 2 TEXT_WIDTH S...

Page 114: ...iot bus Documentation Release latest 110 Chapter 33 IoT Bus Relay Display Touch Thing...

Page 115: ...ED when open int ledPin 5 choose the pin for the LED int sensorPin 4 choose the input pin we ll use a pullup on this pin to keep high Connect one end of the door switch to this pin Connect the other e...

Page 116: ...ebThingAdapter adapter WiFi localIP sensor addProperty openProperty adapter addDevice sensor adapter begin pinMode sensorPin INPUT_PULLUP pinMode ledPin OUTPUT declare LED as output void loop int val...

Page 117: ...CHAPTER 35 IoT Bus DHT11 Thing include arduino h continues on next page 113...

Page 118: ...emperature The temperature from x to y NUMBER LevelProperty Temperature F false ThingProperty humidity humidity The humidity from 0 to 100 NUMBER LevelProperty Humidity percent false ThingPropertyValu...

Page 119: ...fortStatus Comfort_OK break case Comfort_TooHot comfortStatus Comfort_TooHot break case Comfort_TooCold comfortStatus Comfort_TooCold break case Comfort_TooDry comfortStatus Comfort_TooDry break case...

Page 120: ...eFont FreeSans18pt7b display setRotation 1 display setTextColor color display setTextSize scale display setCursor x y display println str void setup Serial begin 115200 dht setup dhtPin DHTesp DHT11 T...

Page 121: ...F String newValues humidity if current last displayString last ILI9341_BLACK clear old text by writing it black displayString current ILI9341_WHITE write the new value reading number dht toFahrenheit...

Page 122: ...iot bus Documentation Release latest 118 Chapter 35 IoT Bus DHT11 Thing...

Page 123: ...CHAPTER 36 IoT Bus HC SR04 Thing Arduino framework include arduino h MOZ IoT continues on next page 119...

Page 124: ...int trigPin 2 Trigger int echoPin 4 Echo long duration cm inches displayString helper function to draw text on the TFT display const int textHeight 18 const int textWidth 18 const int width 320 const...

Page 125: ...tln Wait for connection while WiFi status WL_CONNECTED delay 500 Serial print Serial println Serial print Connected to Serial println ssid Serial print IP address Serial println WiFi localIP Initializ...

Page 126: ...2 74 Divide by 74 or multiply by 0 0135 Uncomment to display on serial monitor Serial print inches Serial print in Serial print cm Serial print cm Serial println if cm 400 cm 2 current Out of range e...

Page 127: ...CHAPTER 37 IoT Bus HC SR501 PIR Thing include Arduino h Simple motion sensor example using HC S501 continues on next page 123...

Page 128: ...erty ThingPropertyValue sensorValue void setup Serial begin 115200 Use serial monitor for debugging Start WiFi WiFi mode WIFI_STA WiFi begin ssid password Serial println Wait for connection while WiFi...

Page 129: ...ensorValue boolean true digitalWrite ledPin HIGH else if sensorOn getValue boolean true Turned off Serial println Motion ended Update on the output change not state sensorValue boolean false digitalWr...

Page 130: ...iot bus Documentation Release latest 126 Chapter 37 IoT Bus HC SR501 PIR Thing...

Page 131: ...____ WiFi ssid and password const char ssid const char password simple window style class used for the response box and buttons enum alignment LEFT RIGHT MIDDLE class Button public Button TFT_eSPI _tf...

Page 132: ...eight TFT_WHITE tft fillRect x width 5 y 5 height TFT_DARKGREY tft drawFastVLine x width 1 y height TFT_WHITE draw the text tft setTextSize 4 tft setTextColor color tft println text bool hit TS_Point...

Page 133: ...FT_LIGHTBLUE TFT_LIGHTSALMON TFT_LIGHTGREY TFT_LIGHTGREEN TFT_LIGHTBLUE enum buttonType NUM CLEAR EQUALS DIVIDE MULTIPLY ADD SUBTRACT uint8_t buttonTypes 4 4 NUM NUM NUM DIVIDE NUM NUM NUM MULTIPLY NU...

Page 134: ...80 define buttonHeight 60 define buttonWidth 60 resultBox new Button tft we are using the touchscreen to getwidth as we know it changes with orientation need to check tft resultBox setRect 0 0 ts getW...

Page 135: ...r Accumulator 0 function button getText break Hittest for all buttons Button hitTest TS_Point p for int i 0 i BUTTONCOUNT i if buttons i hit p Serial println buttons i getText handleButton buttons i r...

Page 136: ...y IoT Bus Calculator textDisplayTypes ThingProperty accumulatorProperty Accumulator NUMBER nullptr ThingProperty num1Property Number 1 NUMBER nullptr ThingProperty num2Property Number 2 NUMBER nullptr...

Page 137: ...m1Property textDisplay addProperty num2Property functionProperty setValue value textDisplay addProperty functionProperty adapter addDevice textDisplay adapter begin Create and draw calculator calculat...

Page 138: ...iot bus Documentation Release latest 134 Chapter 38 IoT Bus Calculator Thing...

Page 139: ...uch switch thing which uses the capacitive switch capability of the IoT Bus ESP32 processor and the LED lamp We will see how to get the working on their own and then use the Mozilla IoT Rules engine t...

Page 140: ...iot bus Documentation Release latest 136 Chapter 39 IoT Bus Mozilla IoT Tutorials...

Page 141: ...la IoT gateway on a Raspberry PI as described here include Arduino h include Thing h include WebThingAdapter h These lines include the Arduino framework and the Mozilla IoT device and adapter librarie...

Page 142: ...nd exposes its capabilities led addProperty ledOn adapter addDevice led adapter begin These three lines add the ledOn property to the led then add the device to the adapter and then start the adapter...

Page 143: ...have it reflected through the gateway We get that current value of the property ledOn And we use it to set the value of the LED if it has changed we print the changed value to the serial monitor So no...

Page 144: ...Source Code Form is subject to the terms of the Mozilla Public License v 2 0 If a copy of the MPL was not distributed with this file You can obtain one at http mozilla org MPL 2 0 include Arduino h in...

Page 145: ...n blink LOW HIGH active low led blink blink digitalWrite ledPin HIGH active low led Serial println Serial print Connected to Serial println ssid Serial print IP address Serial println WiFi localIP ada...

Page 146: ...iot bus Documentation Release latest 142 Chapter 40 LED Thing Tutorial...

Page 147: ...o trip You will need to have installed the Mozilla IoT gateway on a Raspberry PI as described here include Arduino h include Thing h include WebThingAdapter h These lines include the Arduino framework...

Page 148: ...t list available at this location ThingProperty touched Touched BOOLEAN BooleanProperty This defines a property Touched which has a property type of BooleanProperty Again this is a predefined property...

Page 149: ...ld also change this to reflect a multi level value rather than a binary value if we wished The ED and sensorValue are set to reflect the reading of T0 and the adapter is updated Note T0 is the same as...

Page 150: ...sing ESP32 capacitive touch input This example code is in the public domain TODO Hard code your WiFi credentials here and keep it private const char ssid const char password Uses a touch sensor to det...

Page 151: ...nt IP address Serial println WiFi localIP Initialize MOZ IoT thing adapter new WebThingAdapter adapter WiFi localIP touch addProperty touched adapter addDevice touch adapter begin pinMode ledPin OUTPU...

Page 152: ...iot bus Documentation Release latest 148 Chapter 41 Touch Switch Thing Tutorial...

Page 153: ...hing the Touch Thing to control the other the lED Thing What we want to do is have the LED Thing on when we hold the Touch wire on the other Thing and off when when we release it So we are going to cr...

Page 154: ...he add button on the bottom right and you ll see this You should be able to see the devices LED and IoT Bus Touch Input If you can t you ll need to go back and add them according to the two previous t...

Page 155: ...the input box The select the Touched property from the choices given when you select the bottom right hand corner of the rule icon In a similar fashion drag the LED icon to thr right output box and s...

Page 156: ...bus Documentation Release latest If you step back out of rule editing the rule should look like this In a similar fashion add the second rule for not touched LED off 152 Chapter 42 Mozilla Rules Engi...

Page 157: ...bus Documentation Release latest Once you have done that you should see the finished result Now when you touch the wire on one Thing the status is reflected on the other Thing by the on board LED Easy...

Page 158: ...iot bus Documentation Release latest 154 Chapter 42 Mozilla Rules Engine...

Page 159: ...s platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding interactive objects spaces or physical experiences 43 2 ESP IDF Espressif IoT D...

Page 160: ...iot bus Documentation Release latest 156 Chapter 43 Frameworks...

Page 161: ...CHAPTER 44 Platforms 44 1 Espressif32 ESP WROOM32 WiFi Bluetooth Combo Module 157...

Page 162: ...ications aimed at makers hardware engineers software engineers and solution provides ESP32 is a single chip 2 4 GHz Wi Fi and Bluetooth combo chip designed with TSMC ultra low power 40 nm technology I...

Page 163: ...up to 150 Mbps 802 11 e QoS for wireless multimedia technology WMM PS UAPSD MPDU and A MSDU aggregation Block ACK Fragmentation and de fragmentation Automatic Beacon monitoring scanning 802 11 i secu...

Page 164: ...based profile supported SPP Like GATT based profile BLE Beacon A2DP AVRCP SPP HSP HFP RFCOMM CVSD and SBC for audio codec Bluetooth Piconet and Scatternet Clocks and Timers Internal 8 MHz oscillator w...

Page 165: ...Ultra low power analog pre amplifier Security IEEE 802 11 standard security features all supported including WFA WPA WPA2 and WAPI Secure boot Flash encryption 1024 bit OTP up to 768 bit for customer...

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