User Manual

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Put a magnet close to the Switch Hall sensor. Then a string “Detected magnetic materials”
will be printed on the screen and the LED will light up.
For Analog Hall Switch, take the following steps
Step 1: Build the circuit
Raspberry Pi T-Cobbler
PCF8591 module
SDA SDA1 SDA
SCL SCL1 SCL
3V3 3V3 VCC
GND GND GND
Analog Hall Switch T-Cobbler PCF8591 module
DO GPIO17 *
AO * AIN0
VCC 3V3 VCC
GND GND GND