README.md

@@ -1,10 +1,16 @@
-# nRF24 touch pad
+# RF touch switch
 
-Touch pad on ATmega328 + nRF24.
+Touch switch on ATmega168/328 + nRF24.
 
 ## Features
 
 1. Power consumption in sleep mode approximately 10 μA. Up to 2 years of operation on one CR2032 battery (estimated).
 2. When triggered transmits battery level charge.
 3. Automatic restart in case of a hang-up.
-4. Easy installation into any standard touch pad enclosure.
+4. Easy installation into any standard touch switch enclosure.
+
+## Note
+
+A gateway is required. For details see [RF Gateway](https://github.com/aZholtikov/RF-Gateway).
+
+Any feedback via [e-mail](mailto:github@zh.com.ru) would be appreciated. Or... [Buy me a coffee](https://paypal.me/aZholtikov).

platformio.ini

@@ -1,10 +1,12 @@
-[env:ATmega328]
+[env:ATmega168]
 platform = atmelavr
-board = ATmega328
+board = ATmega168
-board_build.mcu = atmega328
+board_build.mcu = atmega168
 board_build.f_cpu = 8000000L
 framework = arduino
 upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
 board_fuses.hfuse = 0xDE
 board_fuses.lfuse = 0xE2
 board_fuses.efuse = 0x07
@@ -12,9 +14,69 @@ upload_flags =
 	-Pusb
 	-e
 lib_deps = 
-	http://git.zh.com.ru/alexey.zholtikov/zh_config.git
+	https://github.com/aZholtikov/ZHConfig
-	http://git.zh.com.ru/alexey.zholtikov/arduino_nrf24.git
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
-	http://git.zh.com.ru/alexey.zholtikov/arduino_free_rtos.git
+	https://github.com/nRF24/RF24
+
+[env:ATmega168P]
+platform = atmelavr
+board = ATmega168P
+board_build.mcu = atmega168p
+board_build.f_cpu = 8000000L
+framework = arduino
+upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
+board_fuses.hfuse = 0xDE
+board_fuses.lfuse = 0xE2
+board_fuses.efuse = 0x07
+upload_flags = 
+	-Pusb
+	-e
+lib_deps = 
+	https://github.com/aZholtikov/ZHConfig
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
+	https://github.com/nRF24/RF24
+
+[env:ATmega168PB]
+platform = atmelavr
+board = ATmega168PB
+board_build.mcu = atmega168pb
+board_build.f_cpu = 8000000L
+framework = arduino
+upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
+board_fuses.hfuse = 0xDE
+board_fuses.lfuse = 0xE2
+board_fuses.efuse = 0x07
+upload_flags = 
+	-Pusb
+	-e
+lib_deps = 
+	https://github.com/aZholtikov/ZHConfig
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
+	https://github.com/nRF24/RF24
+
+[env:ATmega328]
+platform = atmelavr
+board = ATmega328
+board_build.mcu = atmega328
+board_build.f_cpu = 8000000L
+framework = arduino
+upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
+board_fuses.hfuse = 0xDE
+board_fuses.lfuse = 0xE2
+board_fuses.efuse = 0x07
+upload_flags = 
+	-Pusb
+	-e
+lib_deps = 
+	https://github.com/aZholtikov/ZHConfig
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
+	https://github.com/nRF24/RF24
 
 [env:ATmega328P]
 platform = atmelavr
@@ -23,6 +85,8 @@ board_build.mcu = atmega328p
 board_build.f_cpu = 8000000L
 framework = arduino
 upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
 board_fuses.hfuse = 0xDE
 board_fuses.lfuse = 0xE2
 board_fuses.efuse = 0x07
@@ -30,9 +94,9 @@ upload_flags =
 	-Pusb
 	-e
 lib_deps = 
-	http://git.zh.com.ru/alexey.zholtikov/zh_config.git
+	https://github.com/aZholtikov/ZHConfig
-	http://git.zh.com.ru/alexey.zholtikov/arduino_nrf24.git
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
-	http://git.zh.com.ru/alexey.zholtikov/arduino_free_rtos.git
+	https://github.com/nRF24/RF24
 
 [env:ATmega328PB]
 platform = atmelavr
@@ -41,6 +105,8 @@ board_build.mcu = atmega328pb
 board_build.f_cpu = 8000000L
 framework = arduino
 upload_protocol = usbasp
+build_flags = 
+	-D ID=$UNIX_TIME
 board_fuses.hfuse = 0xDE
 board_fuses.lfuse = 0xE2
 board_fuses.efuse = 0x07
@@ -48,6 +114,6 @@ upload_flags =
 	-Pusb
 	-e
 lib_deps = 
-	http://git.zh.com.ru/alexey.zholtikov/zh_config.git
+	https://github.com/aZholtikov/ZHConfig
-	http://git.zh.com.ru/alexey.zholtikov/arduino_nrf24.git
+	https://github.com/feilipu/Arduino_FreeRTOS_Library
-	http://git.zh.com.ru/alexey.zholtikov/arduino_free_rtos.git
+	https://github.com/nRF24/RF24

src/main.cpp

@@ -3,44 +3,22 @@
 #include "RF24.h"
 #include "avr/interrupt.h"
 #include "semphr.h"
-#include "zh_config.h"
+#include "EEPROM.h"
+#include "ZHConfig.h"
 
-#define ID 1 // Unique ID of the device on the network.
+void sendButtonPushing(void *pvParameters);
+float getBatteryLevelCharge(void);
+void loadId(void);
+
+int16_t id{abs((int16_t)ID)};
 
 RF24 radio(9, 10);
-SemaphoreHandle_t pad_pushing;
+SemaphoreHandle_t buttonSemaphore;
-
-float get_battery_level_charge()
-{
-  ADMUX = (1 << REFS0) | (1 << MUX3) | (1 << MUX2) | (1 << MUX1);
-  ADCSRA |= (1 << ADEN);
-  delay(10);
-  ADCSRA |= (1 << ADSC);
-  while (bit_is_set(ADCSRA, ADSC))
-    ;
-  ADCSRA &= ~(1 << ADEN);
-  return (1024 * 1.1) / (ADCL + ADCH * 256);
-}
-
-void send_pad_pushing(void *pvParameters)
-{
-  (void)pvParameters;
-  for (;;)
-  {
-    xSemaphoreTake(pad_pushing, portMAX_DELAY);
-    rf_transmitted_data_t sensor{ID, RFST_TOUCH_PAD};
-    sensor.value_1 = get_battery_level_charge() * 100;
-    radio.powerUp();
-    radio.flush_tx();
-    radio.write(&sensor, sizeof(rf_transmitted_data_t));
-    radio.powerDown();
-    sei();
-  }
-  vTaskDelete(NULL);
-}
 
 void setup()
 {
+  loadId();
+
   EICRA |= (1 << ISC11) | (1 << ISC10);
   EIMSK |= (1 << INT1);
   ADCSRA &= ~(1 << ADEN);
@@ -54,8 +32,8 @@ void setup()
   radio.setRetries(15, 15);
   radio.openWritingPipe(0xDDEEFF);
   radio.powerDown();
-  pad_pushing = xSemaphoreCreateBinary();
+  buttonSemaphore = xSemaphoreCreateBinary();
-  xTaskCreate(send_pad_pushing, "Send Pad Pushing", configMINIMAL_STACK_SIZE, NULL, 1, NULL);
+  xTaskCreate(sendButtonPushing, "Send Button Pushing", configMINIMAL_STACK_SIZE, NULL, 1, NULL);
 }
 
 void loop()
@@ -68,8 +46,51 @@ void loop()
   sleep_reset();
 }
 
+void sendButtonPushing(void *pvParameters)
+{
+  (void)pvParameters;
+  for (;;)
+  {
+    xSemaphoreTake(buttonSemaphore, portMAX_DELAY);
+    rf_transmitted_data_t sensor{id, RFST_TOUCH_SWITCH};
+    sensor.value_1 = getBatteryLevelCharge() * 100;
+    radio.powerUp();
+    radio.flush_tx();
+    radio.write(&sensor, sizeof(rf_transmitted_data_t));
+    radio.powerDown();
+    sei();
+  }
+  vTaskDelete(NULL);
+}
+
+float getBatteryLevelCharge()
+{
+  ADMUX = (1 << REFS0) | (1 << MUX3) | (1 << MUX2) | (1 << MUX1);
+  ADCSRA |= (1 << ADEN);
+  delay(10);
+  ADCSRA |= (1 << ADSC);
+  while (bit_is_set(ADCSRA, ADSC))
+    ;
+  ADCSRA &= ~(1 << ADEN);
+  return (1024 * 1.1) / (ADCL + ADCH * 256);
+}
+
+void loadId()
+{
+  cli();
+  if (EEPROM.read(511) == 254)
+    EEPROM.get(0, id);
+  else
+  {
+    EEPROM.write(511, 254);
+    EEPROM.put(0, id);
+  }
+  delay(50);
+  sei();
+}
+
 ISR(INT1_vect)
 {
   cli();
-  xSemaphoreGiveFromISR(pad_pushing, NULL);
+  xSemaphoreGiveFromISR(buttonSemaphore, NULL);
 }