Initial commit

2018-03-16 21:51:11 +01:00
commit 627a9ac0d6
2 changed files with 1983 additions and 0 deletions
@@ -0,0 +1,96 @@
+/*
+ * NodeManager
+ */
+
+#include "NodeManager.h"
+
+/***************************************
+   Global functions
+*/
+
+// return vcc in V
+float getVcc() {
+  #ifndef MY_GATEWAY_ESP8266
+    // Measure Vcc against 1.1V Vref
+    #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+      ADMUX = (_BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1));
+    #elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
+      ADMUX = (_BV(MUX5) | _BV(MUX0));
+    #elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+      ADMUX = (_BV(MUX3) | _BV(MUX2));
+    #else
+      ADMUX = (_BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1));
+    #endif
+    // Vref settle
+    wait(70);
+    // Do conversion
+    ADCSRA |= _BV(ADSC);
+    while (bit_is_set(ADCSRA, ADSC)) {};
+    // return Vcc in mV
+    return (float)((1125300UL) / ADC) / 1000;
+  #else
+    return (float)0;
+  #endif
+}
+
+
+/***************************************
+   PowerManager
+*/
+
+// set the vcc and ground pin the sensor is connected to
+void PowerManager::setPowerPins(int8_t vcc_pin, int8_t ground_pin, int wait_time) {
+  #if DEBUG == 1
+    Serial.print(F("PWR G="));
+    Serial.print(ground_pin);
+    Serial.print(F(" V="));
+    Serial.println(vcc_pin);
+  #endif
+  _vcc_pin = vcc_pin;
+  // configure the vcc pin as output and initialize to high (power on)
+  pinMode(_vcc_pin, OUTPUT);
+  digitalWrite(_vcc_pin, HIGH);
+  _ground_pin = ground_pin;
+  if (_ground_pin >= 0) {
+	  // configure the ground pin as output and initialize to low
+	  pinMode(_ground_pin, OUTPUT);
+	  digitalWrite(_ground_pin, LOW);
+  }
+  _wait = wait_time;
+}
+
+// return true if power pins have been configured
+bool PowerManager::isConfigured() {
+  if (_vcc_pin != -1) return true;
+  return false;
+}
+
+bool PowerManager::isPowerOn() {
+	return digitalRead(_vcc_pin);
+}
+
+// turn on the sensor by activating its power pins
+void PowerManager::powerOn() {
+  if (! isConfigured()) return;
+  #if DEBUG == 1
+    Serial.print(F("ON P="));
+    Serial.println(_vcc_pin);
+  #endif
+  // power on the sensor by turning high the vcc pin
+  digitalWrite(_vcc_pin, HIGH);
+  // wait a bit for the device to settle down
+  if (_wait > 0) wait(_wait);
+}
+
+// turn off the sensor
+void PowerManager::powerOff() {
+  if (! isConfigured()) return;
+  #if DEBUG == 1
+    Serial.print(F("OFF P="));
+    Serial.println(_vcc_pin);
+  #endif
+  // power off the sensor by turning low the vcc pin
+  digitalWrite(_vcc_pin, LOW);
+}
+
+