In 2025 we are spoiled for choice when it comes to displays, with affordable LCDs, OLEDs, TFTs, and e-ink panels of all sizes only a few clicks away. But in decades past, such exotica were not on the ...

On the internet, you can find cheap FM radio receiver kits based on the RDA5807 ‘single-chip FM broadcast stereo radio tuner’ by RDA Microelectronics. This IC contains everything to build an FM ...

On this page I present to you a small instrument capable not only of checking the good condition of a crystal (sometimes unknown when its marking is erased or illegible...) but also of displaying its ...

Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, ...

Nowadays, visual indication is a must-have feature for any electronic device, which will make user interaction much easier. There are multiple ways to implement the visual indication, from simple ...

TM1637 is a kind of LED (light-emitting diode display) drive controller special circuit with a keyboard scan interface. It is internally integrated with MCU digital interface, data latch, and LED high ...

Segment: One LED in a 7-segment display Digit: One 7-segment display (Value 0..9 and A..F) Dot: The dot LED in a 7-segment digit Pos: Print position 0...7 (MSB bit 7: left .. LB bit 0: right) Radius: ...

Arduino is a great way for today’s novices to start to learn how to write and run codes that interact with the external world. Somebody on Facebook recently asked about finding an easy-to-use shield ...