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adafruit / Adafruit_CircuitPython_BusDevice

Two helper classes that handle transaction related state for I2C and SPI including locks.
MIT License
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Have tsl2561 device at address 0x29 but the example code does not find the device? #58

Closed Nodi-Rubrum closed 4 years ago

Nodi-Rubrum commented 4 years ago

Have tsl2561 device at address 0x29 but the example code does not find the device?

Tried... `import board import busio import adafruit_tsl2561

i2c = busio.I2C(board.SCL, board.SDA) tsl = adafruit_tsl2561.TSL2561(i2c) tsl.lux `

Error reported... ValueError: No I2C device at address: 39

Output from i2cdetect... # i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- 29 -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: UU -- -- -- UU -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- UU

caternuson commented 4 years ago

The default address for the TSL2561 is 0x39: https://github.com/adafruit/Adafruit_CircuitPython_TSL2561/blob/0f747d7822b2a008f6295a722f19a9051a906682/adafruit_tsl2561.py#L57

Since you are using a non-default address setting, you need to specify it: https://github.com/adafruit/Adafruit_CircuitPython_TSL2561/blob/0f747d7822b2a008f6295a722f19a9051a906682/adafruit_tsl2561.py#L82 ex:

 tsl = adafruit_tsl2561.TSL2561(i2c, address=0x29)
Nodi-Rubrum commented 4 years ago

Yup, actually I pulled a "TSL2591" out of inventory. TSL2591 of course the default address is 0x29, where the TSL2561 is 0x39.