Project of a temperature, humidity and pressure sensor with an electronic ink display. The screen size is 1.54 inches. The device uses a si7021, sht21,htu21d or bme280 sensor. used chip nRF52832, nRF52833, nRF52840. Multi-language, color inversion, powered by one or two batteries. A new version of the display is being used(GDEH0154D67), the highest resolution(number of pixels per 1 inch) among displays of other sizes, the best contrast(black is black).
Don't donate to me, it doesn't work in this world: https://paypal.me/efektalab , just buy:
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Video: https://youtu.be/T66y83lF-xg
More info at http://efektalab.com/eink154V4
