Archives: Projects

Program a 32-bit Tivaware Board (TM4C123x series) from Texas Instruments using Embedded C from scratch. Includes TM4C123G ARM-cortex MCU. Things used in this project Hardware Components: Texas Instruments EK-TM4C123GXL TM4C Tiva LaunchPad Software apps and online services:...

Node-RED is a powerful open-source visual programming tool for building Internet of Things (IoT) applications. In this tutorial, we’ll cover what Node-RED is, how to install it, and how to use the visual interface to create a simple flow. What is Node-RED? Node-RED is an...

The LILYGO T5 4.7 inch E-Paper ESP32 Development Board is an exciting 4.7" e-paper display integrated with an ESP32 WiFi/Bluetooth module. The board's processor is ESP32-WROVER-E with 16MB of FLASH memory and 8MB of PSRAM. The ESP32 module supports Wi-Fi 802.11 b/g/n and Bluetooth...

The project described here is an off-line universal AC Voltage input step-down regulator that provides accurate constant voltage (CV) output, outstanding low standby power, high efficiency at light load, and excellent dynamic response based on non-isolated buck topology. The project...

This isolated single-supply bidirectional current sensing project can accurately measure load currents from –2A to 2A. The linear range of the input is from –250mV to 250mV with a differential output range of –2.05V to 2.05V. The gain of the circuit is fixed at 8.2V/V.  The...

The project described here protects and monitors a Lead-Acid battery against too-low battery voltage and over-current conditions. The circuit consists of MAX4373 current-sense amplifier with internal dual comparators and P-channel MOSFET in series with the battery and its load. It...

This project can be used in bidirectional high-voltage measurements. The output is fully isolated from the input side and can be used for applications such as high-voltage DC-DC converters, High-Voltage EV chargers, SMPS, 3 Phase motor drivers, inverters, etc. The board is built using...

The project demonstrated here is an IR proximity sensor-based LED light, mainly designed for interactive coffee tables, but also can be used as single interactive light. The table can be made with multiple of these PCBs. Multiple tiles can be used as shown in the image below, each...