Radiocrafts RC1882-IPM, Руководство пользователя

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USER MANUAL RC188x-GPR

2019 Radiocrafts AS
RIIM User Manual (rev.1.2)
Page 7 of 23
5 An example
We will show you an example of a wireless voltage sensor using the built in ADC.
This sensor will have the following behaviors:

Finds and joins a network automatically

Every 10 seconds, read data from the ADC

Periodically, send a CoAP PUT message to a CoAP server – in this case the root node
Take a look at the code implementation below. Only basic C knowledge is required. And keep in mind that the
entire code is composed of RIIM_SETUP() and a list of event handlers.
Example : ICI code
#include "RIIM_UAPI.h"
static const uint32_t TimerPeriod = 10 ;
static uint8_t CoAP_timer_handler , Sensor_timer_handler ;
static const uint8_t Resource_Name []= "data" ;
static uint32_t milliVolts ;
static void ReadSensor ()
{
ADC . convertToMicroVolts ( ADC0 , & milliVolts );
milliVolts /= 1000 ;
return ;
}
static void SendCoAP ()
{
ipAddr RootNodeIPAddr ;
// We first check if we are part of a network and the address of the root node
if ( Network . getRootNodeAddress (& RootNodeIPAddr )!= UAPI_OK ){
return ;
}
CoAP.connectToServer(&RootNodeIPAddr, false);
// Send temperature and humidity to root node. The URI is "coap://[root-node-
ip]/data"
// For this demo, we'll use JSON formatting. JSON is not size efficient,
// but easy to read and parse
uint8_t payload [ 100 ];
int payload_length ;
payload_length
= Util . sprintf (( char *) payload , "{\"mV\": %i}" , milliVolts );
CoAP . send ( CoAP_PUT , false, Resource_Name , payload , payload_length );
return ;
}
void ResponseHandler ( const uint8_t * payload , uint8_t payload_size )
{
Util . printf ( "# Got CoAP Response. Doing nothing with it...\n" );
return ;
}