Created
November 13, 2021 05:21
-
-
Save zvakanaka/1abef748295b776d356ab05fa468b665 to your computer and use it in GitHub Desktop.
Deserialize JSON using a cheap 433 Mhz reciever
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <Arduino.h> | |
// version 6 | |
#include <ArduinoJson.h> | |
// same version as dronebot 433 video | |
#include <RH_ASK.h> | |
#include <SPI.h> | |
RH_ASK rf_driver; | |
void setup() { | |
rf_driver.init(); | |
Serial.begin(9600); | |
Serial.println("booted"); | |
} | |
void loop() { | |
uint8_t buf[RH_ASK_MAX_MESSAGE_LEN]; // 60 last time I checked | |
uint8_t buflen = sizeof(buf); | |
if (rf_driver.recv(buf, &buflen)) { | |
// message received with valid checksum | |
// rf_driver.printBuffer("printBuffer:", buf, buflen); | |
// null terminate the buffer https://forum.arduino.cc/t/converting-a-uint8_t-buffer-to-char-array/556893/6 | |
buf[buflen] = '\0'; | |
Serial.println((char*)buf); | |
// https://arduinojson.org/v6/example/parser/ | |
StaticJsonDocument<200> doc; | |
DeserializationError error = deserializeJson(doc, (char*)buf); | |
if (error) { | |
Serial.print(F("deserializeJson() failed: ")); | |
Serial.println(error.f_str()); | |
return; | |
} | |
const char* command = doc["command"]; | |
Serial.print("command: "); | |
Serial.println(command); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment