EASY PIR multisensors box
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Attribution-ShareAlike (CC-BY-SA)
Created:
7 years ago
Updated:
6 years ago
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_Unfortunately I can't open my ebay shop right now. While I'm trying to open it, you can buy this board here: https://www.tindie.com/stores/easySensors/ _

I designed this multisensors board for usage in real life (long life, temperature range, radio range...).

Specification

  • Dimensions 31mm x 41mm. Fits very nice plastic box.
  • Powered from two CR2032 batteries in series with very high efficient power converter (3.5-10V). Double battery holder. JST for external battery.
  • Wide temperature range. I expect -30°C - +70°C (UPD. -20°C - 40°C tested).
  • Stable 3.3V voltage during all battery lifetime.
  • S16-L201D pir, bh1750fvi light, si7021 temperature/humidity sensors are onboard (optional bmp280 sensor footprint)
  • Multiradio board. Rfm69cw and nrf24l01 are supported.
  • Authentication security - Atmel ATSHA204A Crypto Authentication Chip
  • External JDEC EPROM
  • Dualoptiboot bootloader. Implements over the air (OTA) firmware update ability
  • Battery voltage sensor (via divider, 6v is sensed)
  • FTDI header for programming
  • Two variants of lens are avaliable. Will test both of them.
  • Reverse polarity protection.
  • ... :)

Will share all sources after first tests. I hope to produce first batch soon too.