Inside the digital clock from a Soyuz spacecraft
Timer

Inside the digital clock from a Soyuz spacecraft

Ken Shirriff published an interesting article on his blog. He writes: We recently obtained a clock that flew on a Soyuz space mission.1 The clock, manufactured in 1984, contains over 100 integrated circuits on ten circuit boards. Why is the clock so complicated? In this blog post, I...

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Arduino IN-14 Nixie Clock with a DS1307 RTC
ArduinoTimer

Arduino IN-14 Nixie Clock with a DS1307 RTC

GreatScottLab @ instructables.com shows us how to build an Arduino Nano based Nixie clock that features DS1307 RTC clock and 4x IN-14 Nixie tubes. He writes: In this project I will show you how to create a retro nixie clock. That means I will show you how you can control nixie tubes...

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ATtiny402 Timer with low power sleep mode
McuTimer

ATtiny402 Timer with low power sleep mode

David Johnson-Davies published another great mini project. It's a Timer based on ATtiny402 and was build to demonstrate the low power sleep mode of the microcontroller. This article describes how to use the new 0-series and 1-series ATtiny microcontrollers in low-power projects, taking...

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1750Hz tone generator using 74HC4060
Timer

1750Hz tone generator using 74HC4060

Dilshan Jayakody published a new mini circuit. He writes: The 1750Hz tone bursts are often used to trigger repeaters. There are several methods to build 1750Hz tone generators which including TC5082 divider, using MCUs, etc. In this post, I present another 1750Hz tone generator which I...

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ESP8266 LED Matrix Clock
Timer

ESP8266 LED Matrix Clock

Simple LED matrix Clock based on the popular ESP8266 with Real Time Clock module and time synchronization over WiFi from an NTP server. One note on the RTC module, apparently it also has the ability to charge the battery, however that's not a good idea when using a CR2032. One possible...

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Slimline SMD Bamboo IN-14 Nixie Clock
Timer

Slimline SMD Bamboo IN-14 Nixie Clock

wouterdevinck @ instructables.com writes: There are a lot of nixie clocks out there and a lot of them are based on the IN-14 tubes. I wanted to design my own for the sake of designing my own, but also had some specific requirements: Make it as small and thin as possible. A lot of the...

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2 Digit Kitchen Timer 00-99 Seconds or 00-99 Minutes
Timer

2 Digit Kitchen Timer 00-99 Seconds or 00-99 Minutes

The projects shown here is a 2 Digit 00-99 Seconds or 00-99 Minutes Countdown kitchen timer based on PIC16F1825 micro-controller. The timer is useful in various applications like Cooking, Sports, Industrial, Sleeping. On board switches provided to set the time and start, a jumper to...

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$18 RTC Shield For Both Arduino UNO And Raspberry Pi 3
ArduinoRaspberry PiTimer

$18 RTC Shield For Both Arduino UNO And Raspberry Pi 3

Time and date information may be essential requirements for developing a hardware project, such as registration systems, alarms, and smart pills box. These information can be obtained locally by RTC (Real Time Clock) and RTCC (Real Time Clock Calendar) circuits like DS1307 from Maxim...

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