I was working with a 7493 counter last night. This is a TTL 4-bit counter with a two independent sections, a divide by 2 and a divide by 8. It also has two reset to 0 pins which are ANDed. You can use it as a divide by N counter where N is less than...
From: Samantha Borrego Date: 3 August 2019 at 20:10:56 BSTSubject: hybrid analysis corrupted account and scans? Im having some serious issues with both using and the scan results So i copy and paste a report directly into email...
Commercially available DCF77 modules Conrad (receiver+antenna)HKW antenna + HKW receiver (datasheet)Grupo Premo antennaReichelt (receiver+antenna)Universal Solder (receiver+antenna) An evaluation of these DCF77 modules has been done by [Udo...
Most clocks use sound to wake you up. This clock is no exception. A little "DFPlayer Mini" module does all of that, also MP3 decoding. It even includes a speaker driver. Yue Xin YX5200-24SS module! Check for short circuit between pin 3 and...
Requirement low power : 3V3 or lower, not 5V powered at least 7 GPIOs, 9 preferred. We don't want to read the status of the switches with an ADC. as small as possible cheap easy to solder Availability : 2nd sourced PlatformIO / Arduino support...
This article shows you how to make an ON OFF switch with a button. You can see from the photo above that I implemented this circuit with an old TTL (Transistor Transistor Logic) JK flip-flop IC (7476). However, you can use D flip-flop and CMOS is always...
Ever dreamt of your own single board computer? Well, Raspberry Pi makes it easier for you to build your own single board computer. The Raspberry Pi is a single board computer which plugs into monitor, TV or directly connect wireless with laptop...
Ever dreamt of your own single board computer? Well, Raspberry Pi makes it easier for you to build your own single board computer. The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a...
Raspberry Pi’s importance and its applications has grown over the years since its inception. The number of applications that their boards can be used in is immense. Their accessories have also come in handy a lot of times. One of them is the Raspberry...
Introduction I've been diving in to forth on and off for a while now. It's a thing that takes over my whole brain, and I really welcome the distraction from time to time. And it's for my work, so there's that. I've been bouncing...
All living beings radiate energy to the surroundings in the form of infrared radiations which are invisible to human eyes. A PIR (Passive infrared) sensor can be used to detect these passive radiations. When an object (human or animal) emitting...
Hi friends,we all know that the most important thing in any circuit is controllers or Integrated Circuits (IC’s). There are two types of it, Microcontroller and Microprocessors which I hope all of you know. All IC’s are built up in certain specified...
Many years ago when I was designing an infrared camera slave pointing system the cost of an infrared receiver IC (integrated circuit) was about $7. This IC was TTL (Transistor Transistor Logic) with three pins. Power, Output and Ground. Then the price...
This article shows a simple infra remote control activated light, made with the use of an infra-red receiver IC (integrated circuit). The maximum range can be as long as 20 metres. You can see my circuit working in this video: I designed this circuit...
Originally published in 2014. In my search for a better LED matrix, I’ve finally arrived at what actually feels like a finished product: the SmartMatrix from PixelMatix. This comes in a complete kit for $130 with everything that you need to build a nicely...