My new arduino project wireless weather mini station with electronic ink display 2.9 inches (GDEH029A1), very low power consumption,compact size, housing with magnets. The device can use si7020 / 21, sht20 / 21, HTU20/21D or BME280 sensors. Use the MINEW MS50SFA RF module with nRF5210, nRF52811, nRF52832 chips, or the EBYTE E73 module with nRF52840 and nRF52833 chips. Soon to be available on openhardware.io
Video: DIY Mini Weather station with an electronic ink display 2.9 Inch ( GDEH029A1 )
My new mini multi device on nRF52810, nRF52811, nRF52832 chips. Designed specifically for a very small case from Aliexpress. It works!!!
bme280, sht20/21, si7020/si7021, hdc1080, max40009, lis2dw12, lis2dh12, lmt01, reed switch, led + rgb led, user button and 6 analog pins, 6 digital pins with NFC.
VIDEO:
Mini multi-sensor in a small case. New Happy node mode test. nRF52 – 03:29
— Andrew EfektaSB
Wireless expansion module for very cheap soil moisture sensor from Aliexpress 
MySensors | Wireless Module for Capacitive Soil Moisture Sensor v1.2 – 05:12
— Andrew EfektaSB
An updated version of my temperature and humidity sensor with e-ink. Now on nRF52840. Now it is not a module but a device in the case.
Replaced temperature sensor sht20 -- > > si7020
Added accelerometer.
In the near future the project will be posted updated on the website openhardware.io
Video: https://youtu.be/T66y83lF-xg
Hello everyone. I want to show you my new device, battery powered air quality sensor. The device also has light, temperature, humidity, and atmospheric pressure sensors. I am currently testing the software.
@magpern said in 
EFEKTA Temp&Hum sensor(ver. nRF52832 )+E-Ink display:
Seriously!!!!!!!!!!!!! It cannot be true!!! I have just ordered PCBs and all needed stuff to assemble it, and now the code is gone!!! Please post the code again, or make it available on alternative sites.. please. It is hundreds of dollars to waste otherwise!
The project will remain open, like others. I was in a bad mood that day:)... The rules of the site administration are reasonable, and the decision to open the project was mine.
Code for Arduino IDE - https://drive.google.com/file/d/13wmxCt9XehJr1E2eyG1RnYsQTMb9A2LR/view?usp=sharing
My new project is finished today and put to the tests. This is a continuation of my other project - Wireless Module for Capacitive Soil Moisture Sensor v1.2.
video: https://youtu.be/2HM0y-D7QNo
I looked again at this old project. It runs on the modified Sandeep mystry library which is on my Github. Just try to choose the board nRF52832, everything should work perfectly on it. And a little later I will update this repo for the 0.7 library
@killah78 said in nRF52840 MINI DEV BOARD EFEKTA:
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It's not clear why it doesn't download these files. I re-uploaded the ino file to github. Try downloading it and compiling it again.
@killah78 Hi,
I haven't been using the MyBoardsNRF5 layer lately.
To compile everything, you need to add that transfer rate. In version 7 of the library from Sandeep mystry, updated files from the Nordic SDK were taken. There is no longer this speed, but you can add it yourself.
About RED LED below
@killah78 Hi, you can use the instructions for example from this project of mine( readme file) - https://github.com/smartboxchannel/EFEKTA-EINK290-TEMP-HUM-PRES-WEATHER-MINI-STATION-NRF52#instruction
@nagelc
Wow, this is unexpected.
@NeverDie said in Coronavirus (way, way, off topic):
If you hop across over to Russia, you might be able to get inoculated with Sputnik V. Although it was initially greeted in the West with skepticism, it has since gotten thumbs up from a proper peer review in Lancet.
Here, vaccination is not very popular, many are in no hurry to get vaccinated. I do not know what this is due to, I think mainly because most people are sure that they have already been ill and received immunity)). Judging by the statistics published here periodically, Sputnik V works well and has almost no complications.
... I'm not sure if it was skepticism, rather something else. 
@NeverDie sgp40 sensor is used, I also test the bme680, but the results are worse there.
