75 lines
1.8 KiB
Text
75 lines
1.8 KiB
Text
/*
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* Sample arduino sketch using contiki features.
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* We turn the LED off
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* We allow read the moisture sensor
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* Unfortunately sleeping for long times in loop() isn't currently
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* possible, something turns off the CPU (including PWM outputs) if a
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* Proto-Thread is taking too long. We need to find out how to sleep in
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* a Contiki-compatible way.
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* Note that for a normal arduino sketch you won't have to include any
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* of the contiki-specific files here, the sketch should just work.
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*/
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#include <Wire.h>
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extern "C" {
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#include "arduino-process.h"
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#include "rest-engine.h"
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#include "net/netstack.h"
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extern resource_t res_led, res_battery, res_cputemp;
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uint8_t led_pin=4;
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uint8_t led_status;
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}
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void setup (void)
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{
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// switch off the led
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pinMode(led_pin, OUTPUT);
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digitalWrite(led_pin, HIGH);
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led_status=0;
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// i2c
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Wire.begin();
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// init coap resourcen
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rest_init_engine ();
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rest_activate_resource (&res_led, "s/led");
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rest_activate_resource (&res_battery, "s/battery");
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rest_activate_resource (&res_cputemp, "s/cputemp");
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// NETSTACK_MAC.off(1);
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mcu_sleep_set(128);
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}
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void loop (void)
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{
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byte error, address;
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int nDevices;
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printf("Scanning...\n");
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nDevices = 0;
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for(address = 1; address < 127; address++ )
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{
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// The i2c_scanner uses the return value of
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// the Write.endTransmisstion to see if
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// a device did acknowledge to the address.
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Wire.beginTransmission(address);
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error = Wire.endTransmission();
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if (error == 0)
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{
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printf("I2C device found at address %2X",address);
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nDevices++;
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}
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else if (error==4)
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{
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printf("Unknow error at address %2X",address);
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}
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}
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printf("\n");
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if (nDevices == 0)
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printf("No I2C devices found\n");
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else
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printf("done\n");
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}
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