From 5e844b869fd9f96f333f712311974984da758443 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Wed, 18 May 2022 22:18:50 +0000
Subject: [PATCH] Camera trigger code cleanup and moving radio transmission to ISR
---
firmware/accelerometer_nrf24/accelerometer_nrf24.ino | 32 +++++++-------------------------
1 files changed, 7 insertions(+), 25 deletions(-)
diff --git a/firmware/accelerometer_nrf24/accelerometer_nrf24.ino b/firmware/accelerometer_nrf24/accelerometer_nrf24.ino
index fce3224..0f2ee39 100644
--- a/firmware/accelerometer_nrf24/accelerometer_nrf24.ino
+++ b/firmware/accelerometer_nrf24/accelerometer_nrf24.ino
@@ -14,61 +14,43 @@
#define OUT_TRIGGER 16
-//RF24 radio(2, 4); // CE, CSN
+//RF24 radio(2, 4); // CE, CSN // This is for alternative wiring.
RF24 radio(22, 21); // CE, CSN
-const byte address[6] = {'R','E','C','V', '1'};
+const byte address[6] = {'R','E','C','V', '1'}; // Do not change this address.
char dataToSend[4] = "TRG";
void IRAM_ATTR isr() {
-// detachInterrupt(digitalPinToInterrupt(IN_TRIGGER));
digitalWrite(OUT_TRIGGER, LOW);
+ radio.write( &dataToSend, 4 );
long time=micros();
- while(micros()-time<4000);
- digitalWrite(OUT_TRIGGER,HIGH);
-// radio.write( &dataToSend, sizeof(dataToSend) );
-
-// attachInterrupt(digitalPinToInterrupt(IN_TRIGGER), isr, RISING);
-
+ while(micros()-time<5000);
+ digitalWrite(OUT_TRIGGER,HIGH);
}
void setup() {
// put your setup code here, to run once:
-
WiFi.mode(WIFI_OFF);
btStop();
-
-
radio.begin();
radio.openWritingPipe(address);
radio.setPALevel(RF24_PA_MAX);
radio.setDataRate( RF24_1MBPS );
radio.setRetries(1,0); // delay, count
- //pinMode(IN_TRIGGER, INPUT_PULLUP);
pinMode(OUT_TRIGGER, OUTPUT);
digitalWrite(OUT_TRIGGER,HIGH);
attachInterrupt(digitalPinToInterrupt(IN_TRIGGER), isr, FALLING);
Serial.begin(115200);
-
}
void loop() {
// put your main code here, to run repeatedly:
-//Serial.print(micros());
-//Serial.println(": ---> TRG");
-//unsigned long start_timer = micros();
-
+//To send the code every 5--6 ms, uncomment this code
+/*
radio.write( &dataToSend, 4 );
long time=micros();
while(micros()-time<5000);
-//Serial.print(micros());
-//Serial.println(": TRG--->");
-/*
-unsigned long end_timer = micros();
-Serial.print(F(" Time to transmit: "));
- Serial.print(end_timer - start_timer); // print the timer result
- Serial.println(F(" us"));
*/
}
--
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