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adress_I2C
Diff: main.cpp
- Revision:
- 0:4f47045c5eff
diff -r 000000000000 -r 4f47045c5eff main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Nov 16 14:17:26 2022 +0000 @@ -0,0 +1,24 @@ +#include "mbed.h" + +I2C i2c(I2C_SDA, I2C_SCL); + +int main(){ + printf("\nI2C Scanner running...\n"); + //i2c.frequency(400000); + int error, address, nDevices; + nDevices = 0; + for(address = 0; address < 128; address++ ){ + thread_sleep_for(10); + error = i2c.write(address << 1, "1", 1); + + if (error == 0){ + printf("I2C device found at address 8bit: 0x%X 7bit: 0x%X\n", address, address << 1); + nDevices++; + } + } + if (nDevices == 0){ + printf("No I2C devices found\n"); + }else{ + printf("\ndone\n"); + } +} \ No newline at end of file