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D F C E -N N N 4 0 -D T x R

 

 

 

mbed Kit User Guide 

                          Sheet 14 of 15 

 

 

Aug 11, 2015 

 

Proprietary Information and Specifications are Subject to Change 

 

4.7   Measuring Current 

The  current  drawn  by  the  DFCE-NNN40-DTxR  module  can  be  monitored  on  the  DELTA 

DFCEM-NNN40  mbed  kit.  To  measure  the  current,  you  must  first  prepare  the  board  by 

removing  the  0

  on  R127and  R128.  To  measure  the  current  of  BLE  chip,  please  connect 

current  meter  series  to  1V8  and  BLE_1V8_IN  pin  on  CN7;  while  the  current  of  Wi-Fi  chip 

measurement, please connect current meter series to 3V6 and WIFI_3V6_IN pin on CN7. 

5. Federal Communications Commission (FCC) 

  Statement 

15.21 

You are cautioned that changes or modifications not expressly approved by the part 

responsible for 

compliance could void the user’s authority to operate the equipment. 

 

15.105(b) 

This equipment has been tested and found to comply with the limits for a Class B digital device, 

pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable 

protection against 

harmful interference in a residential installation. This equipment generates, uses and can 

radiate radio 

frequency energy and, if not installed and used in accordance with the instructions, may cause 

harmful 

interference to radio communications. However, there is no guarantee that interference will not 

occur in 

a particular installation. If this equipment does cause harmful interference to radio or television 

reception, which can be determined by turning the equipment off and on, the user is 

encouraged to try to 

correct the interference by one or more of the following measures: 

Содержание DFCE-NNN40-DTXR

Страница 1: ...DFCE NNN40 DTxR mbed Kit User Guide Sheet 1 of 15 Aug 11 2015 Proprietary Information and Specifications are Subject to Change DFCE NNN40 DTXR mbed Kit User Guide...

Страница 2: ...loadable Content 6 2 3 1 nRF51822 documentation 6 2 3 2 Hardware related files 6 3 Getting started 6 3 1 Connect your Delta DFCE NNN40 mbed kit to a computer 6 3 2 Click the MBED HTM file to log in 7...

Страница 3: ...it hardware figure d change 3 3V to 3 6V and 3V3 to 3V6 in whole document e Change document title and footnote f Remove UV sensor in the whole g Remove wording in section 2 3 h Update figures in secti...

Страница 4: ...Energy design Kit has temperature sensor on board it is convenient to set up example application and develop the relative prototype The core of DELTA DFCE NNN40 is DFCE NNN40 DTxR module embed nRF5182...

Страница 5: ...ormation and Specifications are Subject to Change 2 2 DELTA DFCE NNN40 mbed kit hardware figure HDK MCU Temperature Humidity sensor Level Shifter BLE WiFi combo module Voltage regulator for 3V6 and 1V...

Страница 6: ...cts Bluetooth Smart Bluetooth low energy 2 3 2 Hardware related files Schematics Placement All documents can be found from DELTA DFCE NNN40 platform page https developer mbed org platforms Delta DFCE...

Страница 7: ...ries and documentation 3 3 Setup Virtual Com Port Driver DELTA DFCE NNN40 support CDC device At step 3 1 the PC may have an unrecognized device To enable the function please refer the following step 1...

Страница 8: ...jumper and use PC terminal tool to test the UART loop test 3 4 Build up the first program on DELTA DFCE NNN40 1 After you login the mbed click the new program button Then choice one of the example pro...

Страница 9: ...r 32MHz external crystal 256KB flash memory 32KB RAM 2xSPI up to 4MHz 2xI2C 100 400Kbps UART up to 921600 5xADC 14xGPIO LGA42 pin package Built in RF switch for BLE and WLAN using a single antenna BLE...

Страница 10: ...V pin There are pins are passed through level shift to convert from 1 8V to 3 6V Those are SCL_3V6 SDA_3V6 STLK_TX and STLK_RX RF switch pin To switch RF antenna to BLE or Wi Fi it is controlled by gp...

Страница 11: ...DFCE NNN40 DTxR mbed Kit User Guide Sheet 11 of 15 Aug 11 2015 Proprietary Information and Specifications are Subject to Change...

Страница 12: ...e Reset button SWDIO is connected to the embedded Nordic nRF51822 it is working no matter the power supply is from USB or external power 4 4 Power Supply USB External power supply from VIN 5V To selec...

Страница 13: ...e mbed kit board are connected to dedicate I Os on the nRF51822 chip The connections are shown in blew table Part GPIO Short Button0 P16 Button1 P17 LED0 LD7 P07 R132 LED1 LD6 P13 R123 4 6 UART Config...

Страница 14: ...d by the part responsible for compliance could void the user s authority to operate the equipment 15 105 b This equipment has been tested and found to comply with the limits for a Class B digital devi...

Страница 15: ...th for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator your body This transmitter must not be co located or operating in con...

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