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Bastel Brothers' Blog

Doing Stuff. For Fun and not so much Profit.

ESPMobes – The Resurrection: Now even better!

Posted on2021-01-122021-01-12Authordermeb6 Comments

Long time, no see! Some years ago, I started a project to develop some low power environmental sensors. But for different reasons, the project was on hold obviously. There were a few working prototypes but Read More …

CategoriesESP32, Home automationTagsbattery powered, ESP32, ESP8266, home automation, LiFePO4, sensors

Ultra-Low Power Soil Monitor

Posted on2021-01-072023-02-20Authorderflob22 Comments

In an effort to counter my own forgetfulness to water the plant in my apartment and on my balcony, I tried myself on developing a soil moisture sensor device. Since I wanted it to run Read More …

CategoriesESP32, Home automationTagsbattery powered, ESP32, LiFePO4, ULP

d20 ambient desk light

Posted on2021-01-022021-01-06AuthorderflobLeave a comment

While for all of us the year 2020 was the year of the virus, for me it was also the year of Pen & Paper RPGs. Thanks to online tools like roll20.net and more recently Read More …

CategoriesESP32Tagsd20, ESP32, KiCad, SK6812, WLED

ESPMobes – The Batteries

Posted on2018-05-142021-01-12AuthordermebLeave a comment

I designed the circuit with the idea to use batteries without a voltage regulator, because they use current every time. The sensor board should stay in low power mode most of the time, so a Read More …

CategoriesElectronics, ESP8266, Home automationTagsbattery powered, ESP8266, home automation, mobes, sensors

ESPMobes – The Prototype

Posted on2018-05-142021-01-12Authordermeb2 Comments

This is the first and unexpectedly working (!) prototype: It has a dimension of 80 mm x 80 mm. The strange shape is because a had a case in mind. Therefore, I had to align Read More …

CategoriesElectronics, ESP8266, Home automationTagsbattery powered, ESP8266, home automation, mobes, sensors

ESPMobes – The Sensors

Posted on2018-05-142021-01-12AuthordermebLeave a comment

I made my first IOT experiences with the ESP8266 with the ESP-Easy firmware. Therefore, I wanted to keep the hardware compatible. For performance reasons, I later switched to my own code (which I will publish in the Read More …

CategoriesElectronics, ESP8266, Home automationTagsbattery powered, ESP8266, home automation, mobes, sensors

ESPMobes – The Goals

Posted on2018-05-14AuthordermebLeave a comment

This series about my home automation sensor nodes can also be seen on hackaday.io: https://hackaday.io/project/20588-espmobe-battery-powered-esp8266-iot-sensor I like home automation a lot. For automation purposes data must be collected. I also like open software. But mostly Read More …

CategoriesElectronics, ESP8266, Home automationTagsbattery powered, ESP8266, home automation, mobes, sensors

QJE QJ3005P Bench-Top Power Supply

Posted on2018-01-28Authorderflob5 Comments

I recently bought the QJE QJ3005P bench-top power supply. It’s a sub-100€ supply, that goes up to 30V and 5A, which should be more than sufficient for most stuff I do. There seem to be Read More …

CategoriesUncategorized

StripClock

Posted on2017-04-172017-04-23Authorderflob1 Comment

This is actually a project I did quite a while ago (the git repository goes back to September 2014), when the WS2812 LEDs became really popular and ubiquitous. Naturally, I had to get a 5 Read More …

CategoriesAVRTagsattiny, avr, eagle, pcb, stripclock, ws2812

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About this Blog

We are three brothers from Germany, who like to build, hack, craft, develop, create and learn for a hobby. Doing what be do might not always be the most economical way, but it is certainly the most fun and educational for us.

On this blog, we'd to share a few of our ideas and what we learned, the easy or the hard way, with the world.

For Fun and not so much Profit!

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