![Passive Infrared Detector Circuit Passive Infrared Detector Circuit](https://www.electronics-lab.com/wp-content/uploads/2015/10/Screenshot-2015-10-12-13.10.08.png)
Passive Infrared Detector Circuit
The infrared (IR) is invisible radiant energy, electromagnetic radiation that we cannot see with our eyes, but we can sometimes feel on our skin as heat. The infrared light falls just outside the visible spectrum, beyond the edge of what we can see as red. Most of the thermal...
Continue Reading![Hacking a Blood Pressure Monitor Hacking a Blood Pressure Monitor](https://www.electronics-lab.com/wp-content/uploads/2015/10/IMG_20150817_204925039-e1444643402771.jpg)
Hacking a Blood Pressure Monitor
by Eduardo @ edusteinhorst.com: I’ve been meaning to hack my blood pressure monitor for a while, and I finally got around to doing it! So, the idea is to mod a regular electronic blood pressure monitor to make it wireless and connected to the Internet, much like iHealth BP5 or...
Continue Reading![Touchscreen Arduino Library for XPT2046 Touch Controller Chip Touchscreen Arduino Library for XPT2046 Touch Controller Chip](https://www.electronics-lab.com/wp-content/uploads/2015/10/ILI9431Test-1024x580.jpg)
Touchscreen Arduino Library for XPT2046 Touch Controller Chip
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 -...
Continue Reading![EEVblog #806 – Siglent SDG2000X Arb Function Generator First Look EEVblog #806 – Siglent SDG2000X Arb Function Generator First Look](https://www.electronics-lab.com/wp-content/uploads/2015/10/eevblog-806-siglent-sdg2000x-arb-1024x576.jpg)
EEVblog #806 – Siglent SDG2000X Arb Function Generator First Look
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...
Continue Reading![Repair of PXI-2596 (Microwave Switch), PXI-4461 (Signal Analyzer) & PXI-4071 (7.5 Digit FlexDMM) Repair of PXI-2596 (Microwave Switch), PXI-4461 (Signal Analyzer) & PXI-4071 (7.5 Digit FlexDMM)](https://www.electronics-lab.com/wp-content/uploads/2015/10/repair-of-pxi-2596-microwave-swi-1024x576.jpg)
Repair of PXI-2596 (Microwave Switch), PXI-4461 (Signal Analyzer) & PXI-4071 (7.5 Digit FlexDMM)
Repair of PXI-2596 (Microwave Switch), PXI-4461 (Signal Analyzer) & PXI-4071 (7.5 Digit FlexDMM) -...
Continue Reading![The DigiRule – a digital ruler The DigiRule – a digital ruler](https://www.electronics-lab.com/wp-content/uploads/2015/10/digiruler-e1444551877335.png)
The DigiRule – a digital ruler
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...
Continue Reading![4 CHANNEL INFRARED REMOTE MODULE 4 CHANNEL INFRARED REMOTE MODULE](https://www.electronics-lab.com/wp-content/uploads/2015/10/H0021.jpg)
4 CHANNEL INFRARED REMOTE MODULE
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...
Continue Reading![Transient Voltage Suppressors Transient Voltage Suppressors](https://www.electronics-lab.com/wp-content/uploads/2015/10/capacitor.png)
Transient Voltage Suppressors
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...
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