XPT2046_Touchscreen is a library for the XPT2046 resistive touchscreen controllers used on many low cost TFT displays. Touchscreen Arduino Library for XPT2046 Touch Controller Chip -...

Dave takes a look at the new Siglent SDG2122X / SDG2042X Arb Generator and compares it to the Rigol DG4162 and the older Siglent SDG5082. 1.2GS/s arb gen for US$499! Including some performance measurements on the Tektronix MDO3000 spectrum analyser. EEVblog #806 - Siglent SDG2000X...

Repair of PXI-2596 (Microwave Switch), PXI-4461 (Signal Analyzer) & PXI-4071 (7.5 Digit FlexDMM) -...

Brad has designed a cool binary PCB ruler, The DigiRule: So I made the DigiRule! – The DigiRule is a 15cm (6″) ruler with which is marked in binary digits rather than decimal. It has a number of built in digital functions including: logic gates, flip flops, counters etc. The...

4 Channel Infrared (IR) Remote is a simple project using the popular  HT12A and HT12D encoder / decoder chips from Holtek. Specifications Supply – Transmitter: 2.4 ~ 5 VDC, 5 V @ 20 mA & Receiver: 5 ~ 6 VDC, 5 V @ 50 mA  Output – 4 Latched/Momentary TTL compatible...

Voltage suppressors are used to protect circuits from unwanted transients, when other devices like diodes and capacitors fail to do so. Transient effects have various sources and are able to damage the connected parts and ICs if not properly measures taken. In this article we will discuss...

Markus Gritsch posted pictures and code of his PIC24 bedside table alarm clock: Another year, another clock, but for the first time for my alarm clocks. I am not using an MSP430 but a PIC24 instead. Standby current is with 5.5 µA only slightly higher than that of my MSP430 based...

by SHARANYADAS @ instructables.com: I am playing with electronics since i was a child and made numerous circuits.But still now,i didn't made any power supply unit for general purpose use.So tired of making PSU for each circuit,I decided to make a stable Bench PSU for general purpose...