Other
“Highly accurate, Ethernet base, 7-segment clock driver with built-in NTP client. This project introduces an open-source, ATmega328 based, configurable NTP clock with a 2.3-inch, 7-segment display driver. This clock automatically obtains time from the configured NTP server and updates …
“Purpose If there’s one criticism I hear more often than any other about the pi, it’s “I wish my Raspberry Pi had a floppy drive“. It’s really shocking that the pi doesn’t have the ubiquitous 34-pin …
“Sailor Hat with ESP32 (SH-ESP32) is a powerful microcontroller development board for the marine environment. With SH-ESP32 you can easily create all kinds of sensors and control interfaces for your boat. Examples include RPM or fuel and water …
“A four-channel temperature datalogger for PT1000 probes measured by Atmega32U4 and logged on SD-card. My intention was to develop a temperature measuring and datalogging device because I had none. It should show the temperature measurement data on a display …
“A hand-held twist-to-set countdown timer for your kitchen. Recently I built an Attiny85 Twist-to-Set Kitchen Timer by bobson.h. After finishing the build, I found that the optical rotary encoder had a number of problems which I won’t go …
“A 2021 revision of the original MBC design by Fabio Defabis with disk emulation on microSD. Runs CP/M + applications with a VT100 terminal. The Z80-MBC3 is a single board computer available as a kit. It can be assembled …
Project 3 Phase Isolated Hall-effect Current Sense Amplifier with +/-600V Working Voltage and +/-46A Measurement Range
“The project described here is a 3-Phase isolated Hall-effect current sense amplifier with +/-600-V working voltage range. The current sensor senses magnetic flux generated from current passing through the lead frame at common-mode voltages 0 to 600V DC and provides …
“b-parasite is an ultra low power, open source Bluetooth Low Energy (BLE) soil moisture and ambient temperature/humidity sensor. Features - Soil moisture sensor. I wrote about how capacitive soil moisture sensors works on this Twitter thread, based on this great …
“Ever wondered if your batteries are any good? I built a tester with data logging and tested every battery I could get my hands on. It all started with a set of seemingly bad NiMh batteries and the desire to …
“BioPotential amplification on your finger tip! BioAmp EXG Pill is a small (2.54 X 1.00 cm) and elegant Analog Front End (AFE) board for BioPotential signal acquisition that you can use with any 5v Micro Controller Unit (MCU …