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Results tagged with arduino
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user 31277
For questions pertaining to the Arduino microcontroller and it's integration with Raspberry Pi projects. Questions about Arduino only are off-topic and can be asked at Arduino Stack Exchange.
1
vote
How to read a long int via i2c?
On Arduino:
long n;
int req=0;
void sendData(){
if(req==0){
n = 300; //mockup
//n = readDistance();
}
Serial.print(n);
Serial.println(" xx");
Wire.write(n);
n = n>>8;
req = (req+ …
- 524
1
vote
Accepted
How to read a long int via i2c?
Code for the slave (Arduino):
void sendData(){
long n;
n = 300; //mockup
//n = readDistance();
Wire.write((const uint8_t*)&n, sizeof(long));
//Serial.print(n);
//Serial.println(" mm");
} …
- 524
2
votes
4
answers
8k
views
How to read a long int via i2c?
I tried to connect an Arduino Uno with my Raspberry using the i2c bus, with code and wiring suggested here. … This example is sending only one byte from RPi to Arduino and back, and everything works fine. …
- 524