60 lines
1.5 KiB
Plaintext
60 lines
1.5 KiB
Plaintext
/*
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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 poti 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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extern "C" {
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#include "rest-engine.h"
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#include "dev/servo.h"
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extern resource_t res_poti, res_battery;
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uint8_t poti_pin = A5;
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uint16_t poti_voltage = 0;
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uint16_t servo_min= 1000;
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uint16_t servo_max= 2000;
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#define LED_PIN 4
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}
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//**********************scale**********************************
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int scale (int in_min, int in_max, int out_min, int out_max, int wert)
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{
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int abc;
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abc = ((long)out_max - (long)out_min)* ((long)wert-(long)in_min) / ( (long)in_max - (long)in_min);
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abc = abc + out_min;
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return (abc);
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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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// init servo
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servo_init();
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// init coap resourcen
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rest_init_engine ();
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rest_activate_resource (&res_poti, "s/poti");
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rest_activate_resource (&res_battery, "s/battery");
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}
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void loop (void)
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{
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int value;
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poti_voltage = analogRead(poti_pin);
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value=scale (345,868,servo_min,servo_max,poti_voltage);
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servo_set(1,value);
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printf("%d,%d\n",poti_voltage,value);
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}
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