1-Wire Shield for WeMos D1 is 1-Wire to i2c bus converter board based on Maxim DS2482-100 Single-Channel 1-Wire Bus Master chip. It is used to off-load the time critical 1-Wire waveform generation from the MCU to the 1-Wire Bus Master to achieve error free operation with longer 1-Wire bus situations. Board header layout is compatible with WeMos D1 mini microcontroller boards. There is on-board strong pull-up mosfet and the level converter for 5V to 3.3V i2c interface.
Features
- 1-Wire device: Maxim DS2482-100 Single-Channel 1-Wire Master
- 1-Wire connector: RJ45 (RJ12 or 3-pin 3.5mm screw terminal on request)
- Supply voltage: 5V from WeMos D1 board
- i2c logic level: 3.3V
- 1-Wire logic level: 5V
- Strong pull-up capability
Resources
Credits
Buy
- Bare PCB: 3€
- Pre-assembled: 17€
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- Schematic
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- Board Layout
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- PCB
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- Pre-assembled
