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ATtiny85 is small, low-power 8-bit, 8-pin RISC microcontroller from Microchip.

2 votes
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Conflict of polarity?

R2 constitutes the lower half of a voltage divider used to reduce out-of-range voltages to potentials sample-able within the range of an MCU input rating. Voltage dividers do not change polarity rela …
Chris Stratton's user avatar
3 votes

Attiny85 for wireless communication

That's going to be very difficult to accomplish with an ATtiny85's limited pin count given that the nRF24 needs SPI, and given that you have four sensors to somehow scan. …
Chris Stratton's user avatar