LiFePO4wered/Pi – LiFePO4 battery for Raspberry Pi
https://www.electronics-lab.com/lifepo4weredpi-lifepo4-battery-for-raspberry-pi/
Patrick Van Oosterwijck has published a LiFePO4 battery solution for Raspberry Pi that will also act as UPS power supply: The project is built on top of a LiFePO4wered/USB module. A small board is added with an MSP430G2131 microcontroller that takes care of monitoring input and output voltage, monitoring a PCB touch button, driving a power […]
External antenna modifications for the Raspberry Pi 3
https://www.electronics-lab.com/external-antenna-modifications-for-the-raspberry-pi-3/
In this post dorkbotpdx.org show us a couple of different ways that an external antenna can be added to the Raspberry Pi 3. It’s not clear why an external antenna is not an option for the Pi 3, there are a number of possible reasons and I don’t presume to know the Raspberry Pi Foundation’s […]
Teensy 3.2 VS Arduino Due and Arduino Mega. Which one is faster?
https://www.electronics-lab.com/teensy-3-2-vs-arduino-due-and-arduino-mega-which-one-is-faster/
our friends at educ8s.tv wanted to test out how fast the Teensy 3.2 is, so he build the project above. I wanted to find out if Teensy 3.2, despite its small size, is faster than the Arduino Due, the fastest Arduino board available today. So I build a simple project where both boards run the […]
SMD Soldering Reflow Oven
https://www.electronics-lab.com/smd-soldering-reflow-oven/
Here is a nice tutorial on how to build your own reflow soldering oven using ControLeo2 reflow oven controller. This particular instructable is based on the ControLeo2 reflow oven controller by Peter Easton. This is by far the best I’ve come across and the software is fully open source. It can control up to 4 solid […]
WiFi Signal strength indicator using ESP8266
https://www.electronics-lab.com/signal-strength-indicator-for-the-esp8266/
A simple signal strength indicator for the ESP8266 and 128 x 32 OLED Display This is a simple Arduino IDE sketch that displays the RSSI, BSSID and signal “bars” of a given SSID WiFi Signal strength indicator using ESP8266 – [Link]
1.3V – 15.5V @ 2 Amps Power Supply
https://www.electronics-lab.com/1-3v-15-5v-2-amps-power-supply/
Here is a low cost and easy to build power supply based on a some Chinese DC-DC converter modules: This is a small size power supply with low cost and easy to make that only taking about 5 more hours. I was very happy with it and would share with you. Power Supply Specifications Input: […]
AC Motor Speed Controller using U2008B
https://www.electronics-lab.com/ac-motor-speed-controller-using-u2008b/
This low cost current feedback phase control AC motor driver based on U2008 IC, The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and overload protection are preferred application. Specifications Supply In-put: 230V AC Load: Up to […]
AC Motor Speed Controller using U2008B
https://www.electronics-lab.com/project/ac-motor-speed-controller-using-u2008b/
This is a low cost, current feedback phase control AC motor driver based on U2008 IC. The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and overload protection are preferred applications. Specifications Supply Input: 230V AC Load: […]
Counterfeit Macbook charger teardown
https://www.electronics-lab.com/counterfeit-macbook-charger-teardown/
Ken Shirriff @ righto.com has done a detailed teardown of a counterfeit macbook charger and show us the difference from a genuine one and why this can be dangerous. He writes: What’s inside a counterfeit Macbook charger? After my Macbook charger teardown, a reader sent me a charger he suspected was counterfeit. From the outside, […]
BIG Clock Made From Six 3″ 7-Segment LCDs
https://www.electronics-lab.com/big-clock-made-from-six-3%e2%80%b3-7-segment-lcds/
Pierre Muth build a nice big clock using 3″ 7-segment LCD displays. The clock is driven by a PIC18F87K90 and a few other components are used. He writes: We need clocks. Once you have passionate activities which absorbs all your attention, if you want to keep contact with the social society surrounding you, it’s crucial […]