WCH has introduced a line of small RISC-V MCUs with USB and BLE. The 3 major branches of the family are the CH573, CH582 and CH592. They mostly only differ in the level of BLE - from 5.2 to 5.4. Looking for an inexpensive way to check...
In South Africa, our electricity supply is somewhat erratic, due to around 2 decades of under-investment, and incredible levels of corruption. As a result, many residents have resorted to installing solar power, with battery backup to ride out the 2-4...
Manufacturing of Large Dye Sensitized Solar Cell at home from Shih Wei Chieh on Vimeo. Introduction Dye-sensitized solar cells (DSSCs) represent an easily manufacturable and cost-effective photovoltaic device and can be done at DIY level. However, its...
A geophone is a device used in geophysics to detect ground movement. It is specifically designed to measure seismic waves, which are produced by various sources, including earthquakes, and explosions. Typically consist of a mass suspended on a...
The purpose of the project is to design a balancing robot based on the STM32 MCU. On the web, you can find many guidelines on designing the balancing robots. Nevertheless, I always had a hard time finding clear and complete instructions. For example,...
Keyboard The keyboard is a PocketType miniature ortholinear 40% keyboard kit available from Mechboards - https://mechboards.co.uk with numbers and symbols accessed by layer keys. It is microswitch based and OK for thumb based typing...
This is a project for a small benchtop galvanostat - a device that can be used for direct current or pulsed current galvanic deposition of metals on small conductive objects. Essentially, it is a voltage-controlled current source (based on Howland current...
A seismometer, is an instrument used to detect and record ground motion caused by seismic waves, such as those generated by earthquakes, volcanic eruptions, or other sources of ground vibration. Basically, the seismometer consists of two parts,...
The initial board The initial circuit was published bye "Mdog" and did exist into two versions "solo" and "4axis". Both of these boards rely on the Ti LMD1845 H bridge circuit. The LMD18245 is a full-bridge power amplifier with 2• DMOS Power Stage...
I picked up a vintage HP 1600A/1607A logic analyzer set over the weekend which was state of the art back in 1975. I thought I would see if I could at least get them running and functional and then maybe develop some interesting stunt! I was surprised...
Introduction The project involves designing a PCB based on the ESP-12S module to create a WiFi repeater capable of extending the range of WiFi signals. This repeater will amplify and rebroadcast existing WiFi signals, effectively extending the coverage...
CONTEXT After creating v1.0 of the Companion Light (check it out: https://hackaday.io/project/194589-the-companion-light-v10), it seemed that I was able to reach a wider audience for the project. Successful indeed! Now, with the upgrades planned and...
Leakage control is very important in this vehicle, which operates with a nominal 48V BLDC motor. The insulation control on this electronic card is provided by coding it with the STM32F103C8T6 microprocessor. This card, which works with the logic of...
Phase 1: My goal is to design five PCBs that include resistors, capacitors, active devices and various input and output components. These will mount on a laser cut wood base similar to the original design, but smaller. One of the issues...
Overall Details. Normally you have an off-grid system that can, if necessary, be powered by a battery charger from the power grid. If there is less sun in the winter transition periods, the battery voltage drops due to discharging during the shade periods. ...