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Temper is a compact temperature sensor based on ESP8266 and SHT30 with large 13x7 pixel led display.

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Temper-ESP8266

Temper is a compact, low power temperature sensor based on ESP8266 and SHT30 with large 13x7 pixel led display.

  • Low power, only consumes ~30-40uA while asleep. With 400mA battery it should last months on single charge.
  • SHT30 provides very accurate, factory calibrated measurement capability.
  • Super simple Web config (see screenshot here)
  • Home Assistant compatible including auto-discovery, but can be used with any other platform supporting MQTT.
  • 13x7 pixel led display
  • TP4054 charging IC onboard for easy charging via USB
  • Can be attached to a wall using magnets (see thingiverse for details).

How does this thing work?

  • After it's set up in config portal, it periodically wakes up and publishes Temperature, Humidity and Battery percentage through MQTT
  • Pushing the reset button will force send current data and show Temperature on the display

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What you need to make it yourself

  • Hot air station / reflow oven (SHT30 has pins at the bottom, can't be hand-soldered)
  • Components listed in "PCB and BOM" directory (lcsc and aliexpress links provided)
  • Plastic case (download on thingiverse)
  • Hot glue to fixate pcb in the enclosure
  • Patience
  • You can order it with most of the components pre-assembled from JLCPCB (you can find Pick&Place + BOM + Gerber in the above mentioned directory). Partially assambled pcbs will cost you little over $60 for 10pcs, see components information in "PCB and BOM" directory.

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Temper is a compact temperature sensor based on ESP8266 and SHT30 with large 13x7 pixel led display.

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