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biemster

Allround physics, electronics and computing enthousiast.

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This user joined on 05/09/2015.

My Projects

Porting the Android on-device speech recognition found in GBoard to TensorFlow Lite or LWTNN

Android offline speech recognition natively on PC

HF antenna analyzer using Si5351 as signal source, resistive swr bridge and ESP32 or Arduino as the brains

Si5351 HF Antenna Analyzer

Simple Geiger counter using ESP8266 PWM for HV generation and network connectivity

ESP8266 Geiger counter

Custom firmware for the CH552 found in those USB RGB macropads with a rotaty knob

RGB macropad custom firmware

WiFi repeaters are getting super cheap now ($5!) and can contain quite open hardware. Try to make the most out of the QCA953X based ones.

Fun with wifi repeaters

Hack the Parkside smart battery firmware to join the Find My network

The world's clunkiest key finder

View all 9 projects

Projects I Like & Follow

I wanted to make a low cost drone with all the bells and whistles, so people working with a small budget can get into the drone game. ~$50

ESP32 Drone

How to use LIDL "smart" battery, to power custom electronic such as robots or ebike, Reverse engineering their bluetooth connectivity..

LIDL PARKSIDE Battery hacks

thomas-flayols Thomas Flayols

Supplyframe DesignLab: 2022 Hackada…

portable flexible panel + MPPT controller + solar tracker system less than 55 USD ????

Low cost solar panel solution (MPPT + sun tracker)

jp-gleyzes JP Gleyzes

Supplyframe DesignLab: 2022 Hackada…

Tiny Linux handheld with LoRa+WiFI+BT connectivity.

Linkia

reimu-notmoe Reimu NotMoe

PCB linear motors offer a different approach to powering tiny scale model trains, cars, boats, etc.

PCB Linear Motors for Model Trains

A marker pen sized Geiger counter with up to 12 months battery life from 2xLR44, based on STM8L152K4 microcontroller

Compact, low-power Geiger counter

A PCB business card that are a usb-c touch keyboard

Capacitive Touch Keyboard Business Card

ricardo-daniel-de-paula Ricardo Daniel de Paula

Radiation measurement device with Raspberry Pi Pico and STS-5 tube

Geiger counter

florian-wilhelm-dirnberger Florian Wilhelm Dirnberger

A small, fully 3D printed tank, designed with a focus on compactness and performance

Mini FPV Speed Tank

Playing with the new Esp32-C6FH4: https://www.crowdsupply.com/prokyber-s-r-o/esp32-c6-bug

Esp32-C6-Bug + Esp32-Bug-Eth

allexok allexoK

360 degree panoramic video on an omnidirectional chasis, controlled in VR.

PanoBot

Hello everyone, this is Corebb~ For a long time, I have wanted to make this vector laser projector (aka Laser Galvo Projector)

bbLaser - ESP32 RGB Laser Galvo Projector

Using capacitive sensing to measure the oscillation of a candle flame and converting it to a 1 Hz clock

Deriving 1 Hz from Candle Flame Oscillations

Technique to build high quality PCBs in minutes. Also, compare different methods the resolution and ease of use.

Print your own PCBs with Laser or CNC or chemicals

100dollarhacker

A simple NFC signal sniffer and protocol decoder using SDR

SDR NFC Laboratory

jose-vicente-campos Jose Vicente Campos

PN532Killer is a PN532 emulator. It's the fastest NFC emulator. It can sniff data between the reader and the tag.

PN532Killer

USB controlled nRF24L01+ 2.4GHz Transceiver

CH552 USB to NRF

stefan-wagner Stefan Wagner

A set of PCB watches on a 2-layer board featuring a PIC16 and 4-digit segmented LCD display.

Pair of PCB Watches

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Bits