以下内容均经过客户允许，搬运自网页：smartboxchannel (Andrew Lamchenko) · GitHub

What is it?

It is a compact wireless mini weather station with a 2.9 Inch e-paper display with screen resolution of 296x128 pixels. The device has an industrial look, at least I wanted to achieve this. The sensor has very good energy efficiency. Powered by nRF52 multi-protocol chip (BLE, Zigbee, Thread, ESB). The device comes preinstalled with MySensor Protocol (ESB) wireless networking software - www.mysensors.org, can also work as a standalone device without a network. Can use both a ready-made device and a device for developing your own software right away.

You can see how it works in my small video.

Why did you make it?

I am interested in making original devices that are not on sale.

Right now, I'm very interested in low-power, cost-effective wireless devices.

What makes it special?

RF module MINEW MS50SFA supplied in several modifications with nRF52810, nRF52811, nRF52832 chips or RF module EBYTE E73-2G4M08S1C with nRF52840 chip.

Arduino development environment compatible.

The project uses e-paper display (GDEH029A1) from Dalian Good Display Co.ltd.

Very long runtime with one or two CR2450 battery.

Operation with CR2430, CR2450, CR2477 batteries (300mA - 1900mA) OR 2 AAA battery(extended version).

Several versions of the device, in the extended version is available: Ambient Light Sensor MAX44009 (+1μA), Active Buzzer.

Consumption in data transmission mode - 8mA, in sleep mode 4.7μA.

The ability to install different sensors (si7020, si7021, sht20, sht21, htu20d, htu21d or bme280(sold with this sensor))

The case is printed on a FDM or SLA 3D printer, For FDM printing, PLA Carbon Black(оnly this option is on sale), PLA Wood or PLA White is used, and for SLA printing, white or black resin is used. After printing, sanding and polishing is applied

Inside the case, magnet are installed for fixing to magnetic surfaces.

!!!Now there is an increase in prices for electronic components, for example, the bme280 sensor rose in price by more than 100% in March 2021.!!!