Explore battle-tested schematics, real-world C++ firmware, and in-depth engineering guides for Arduino, ESP32 IoT nodes, and solar battery storage in South Africa.
Core Specializations
From micro-power battery nodes to high-current workshop electronics, discover how Chemcool engineers real-world solutions.
From bare ATmega328P breadboard designs to custom ATtiny85 programmer shields, learn how to extract maximum efficiency from 8-bit microcontrollers.
Deploy WiFi and Bluetooth Low Energy (BLE) micro-controllers for real-time cloud data logging, lightning detection, and remote asset tracking.
Engineered for South African load shedding. Smart ESP32 battery balancers, Victron EasySolar data decoding, and lithium-iron phosphate charging curves.
Build bench clocks with RTC & PIR motion activation, gym cardio training controllers, GPS digital speedometers, and OLED telemetry monitors.
Hands-On Tutorials
Explore step-by-step documentation with full source code, bill of materials, and wiring diagrams.
But what if you had a silent digital sentinel constantly scanning the horizon, ready to alert you and log every strike to the cloud? Welcome to the world of the Lightning Detector...
This code is a program for a digital clock with LCD display. The clock uses an RTC module (Real-Time Clock) and is controlled by Arduino Uno board. The clock displays time, date, a...
I recently assembled a digital speedometer using the Heltec WiFi Kit V3, equipped with an OLED screen, built on a proto board. The project integrates a LiPo battery, membrane switc...
As Solar Samba continued its dance, it couldn't help but ponder over the readings on its digital display. "Ah, 12.5V," it thought, "the sun's been generous today." But as the cloud...
In this article, we're diving deep into the modernization of traditional welding equipment using Arduino technology. By replacing old electronic circuits with Arduino, we aim to en...
Read Victron EasySolar Controller Advertised Data References: https://github.com/chrisj7903/Read-Victron-advertised-data/blob/main/SolarController/SolarController.ino I used the gi...
Community & Client Trust
Here is what fellow makers, commercial installers, and hardware engineers say about Chemcool Electronics.
"The Victron EasySolar BLE advertisement decoding code saved us weeks of reverse-engineering. Chemcool's real-world South African load-shedding solutions are second to none."
"The AS3935 Lightning Detector tutorial is masterfully documented. The Arduino Nano ESP32 firmware was rock-solid during our Highveld summer storm season."
"Clean code, zero bloated third-party dependencies, and crystal-clear wiring schematics. Chemcool is my constant benchmark for microcontroller projects."
Whether you need low-power battery telemetry, custom microcontroller firmware, or solar monitoring design, let's discuss your hardware specifications.