change _i2c_scan from doing writes to a single read #11
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I was not able to detect VCNL4010 ambient light and proximity sensor as it will not ACK a write to an invalid internal address (address 0x00 is not valid). It will ACK to a read of an invalid address. As micropython does not have a I2C quick command, a proper I2C scan is not possible to implement... so as a compromise a single byte read should be attempted instead of a multi-byte write. As most i2c device reads will use a repeated start after the address is written, a single byte read will most likely be ACK-ed by the majority of devices.
Added Seeed Xiao RP2040 and Waveshare Zero boards
Added Seeed Xiao RP2040 and Waveshare Zero boards
Added Seeed Xiao RP2040 and Waveshare Zero boards
Added Seeed Xiao RP2040 and Waveshare Zero boards
Added Seeed Xiao RP2040 and Waveshare Zero boards
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I was not able to detect VCNL4010 ambient light and proximity sensor as it will not ACK a write to an invalid internal address (address 0x00 is not valid). It will ACK to a read of an invalid address. As micropython does not have a I2C quick command, a proper I2C scan is not possible to implement... so as a compromise a single byte read should be attempted instead of a multi-byte write. As most i2c device reads will use a repeated start after the address is written, a single byte read will most likely be ACK-ed by the majority of devices.