M5Stick-C can not detected RFID Unit
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 將 RFID Unit 連接上 M5Stick-C 時,使用 I2C_Tester 卻偵測不到它,請問是什麼原因呢?謝謝 Running I2C_Tester can not detected RFID Unit. Why?  
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 @saka said in M5Stick-C can not detected RFID Unit: 將 RFID Unit 連接上 M5Stick-C 時,使用 I2C_Tester 卻偵測不到它,請問是什麼原因呢?謝謝 Running I2C_Tester can not detected RFID Unit. Why?  Can it detect any other i2c devices? 
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 No it can't 
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 There are two I2C ports on the stick, Pin 21 & 22 and 32 and 33 
 The grove is on pins 32 & 33.
 The internal port is 21 & 22
 it looks like the scanner is reading 21 & 22.
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 Thank you, I change the address and it works. 
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 @saka Glad i could help. 
