8/15/2023 0 Comments Cooking timer![]() ![]() A wonky kitchen timer provided the thinly veiled excuse for the build – after all, anyone can drop a couple of yen on a commercial replacement, right? The timer features four IN-12 tubes and a large numeric keypad up front on a laser-cut acrylic case. Check out the video below the break.Īs so often happens with Nixie aficionados, started with tubes and searched for a project to use them on. Is there anything that hasn’t been Nixie-fied? How about a Nixie kitchen timer? Beyond the Nixie tube, this is a great build. Nixie thermometers, speedometers, and even Nixies for personal adornment. Posted in home hacks, Microcontrollers Tagged acrylic, kitchen timer, led matrix, led matrix display, rotary encoder, timer While not strictly required, coming up with a custom PCB for this project would be a nice touch, should you want to put your own spin on it. has provided everything you need to create your own version of his timer, including the SVG file for the laser cut case. We’ve seen some unique kitchen timers over the years, but the attention to detail put into this build really raises the bar. From using the toneAC library to play melodies at the end of the countdown, to the custom fonts and the code that pauses the timer while the user is spinning the knob, there’s plenty of little touches that should make the timer a joy to use. A game developer by trade, went all in on the timer’s GPLv3 licensed firmware. While the hardware is quite nice, it’s the software that really pulls this whole project together. The top of the rotary encoder has been capped off with a sold metal knob, which combined with the enclosure made of stacked laser cut 3 mm acrylic sheets, really gives the device a very sleek and classy look. ![]() ![]() Put together on a piece of perfboard, the handwired circuit also includes an Adafruit PowerBoost 500 Charger, a 3.7 V 2500 mAh LiPo battery, a IS31F元731 Charlieplexed PWM LED driver, and a piezo buzzer. But you probably wouldn’t have been reading it about it here, so we won’t trouble ourselves with such thoughts. Were there better things he could have spent that time on? Possibly. Looking for something with a bit more style than the traditional kitchen timer, decided to take the last couple of months to design and build his own take on the idea using a rotary encoder, 16×9 LED matrix, and a Teensy 2.0 microcontroller. Posted in clock hacks, Microcontrollers Tagged 3D printed case, 7-segment display, atmega328p, kitchen timer, rotary encoder, TM1637 This Brutalist kitchen timer project is a nice addition to some of the kitchen timers we’ve featured in the past, including a minimalist LED matrix timer and a Nixie timer with keypad. It looks like the 3D printed case was sanded down to give it a smooth matte surface finish.Īll the project files, including the STLs, OpenSCAD code, and KiCAD design, are available on GitHub. On the back of the case is a power switch and USB-C connector for power. The internals are driven by an ATmega328P powered from a 18650 cell with a DW01-P battery protection chip and a TP4056 chip for charging. The case for ’s kitchen timer is 3D printed with openings for a TM1637 four digit, seven segment display and for a KY-040 rotary encoder with knob attached. ’s exploration of the idea is a clean, Brutalist kitchen timer. A kitchen timer is one of those projects that’s well defined enough to have a clear goal, but allows plenty of room for experimentation with functionality and aesthetics. ![]()
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