Browsed by
Tag: esp8266

LEDCircleClock Revisited

LEDCircleClock Revisited

Comments 0 Comment

A good friend of mine (Milo) was featured last year on Hackaday with a post about building a circular LED clock. See Milo’s GitHub repository for the original code/version and build instructions. I did build his project, and added some more effects / animations / features. For this new extended version, see my GitHub repository: https://github.com/atkaper/LEDCircleClock . I did not 3d-print the proper case for the clock yet. For now I just put it in a picture frame, with a…

Read More Read More

, , , , , , ,
Light Triggered Fan Timer

Light Triggered Fan Timer

Comments 0 Comment

Intro: A small weekend project, using my favorite ESP8266 (WeMos D1 Mini) controller – A Light Triggered Fan Timer – to keep the air in the smallest room fresh – but also suitable for a bathroom to remove moist air from the shower.Of course you can buy a ready-made fan, which connects to your light, and will run for half an hour when you turn the light on. But… that’s just too easy / no fun, and when building this…

Read More Read More

,
Glowing Bottle

Glowing Bottle

Comments 0 Comment

My daughter is quite artistic (as any proud parent would say), and created a wire animal in a bottle. For this bottle she wanted some lights at the bottom (inside), but… the requirement was that no wire may go through the glass (which would have made everything lots easier of course). By total coincidence, some weeks earlier I did order some wireless power transfer kits. They contain two coils and two little electronics regulator boards to send and receive wireless…

Read More Read More

, ,
WiFi 240V AC Led Dimmer – Speech Controlled

WiFi 240V AC Led Dimmer – Speech Controlled

Comments 2 comments

I wanted to build my own WiFi dimmer, to connect my dinner table lights to Alexa (Amazon Echo Dot). The used parts are an ESP8266 (I used a Wemos D1 Mini Clone), an ATTiny45, some sort of power module to supply 3.3 volt, and a zero-cross-detector / Triac dimmer module.

Sonoff Firmware Update – Lava-lamp Switch

Sonoff Firmware Update – Lava-lamp Switch

Comments 0 Comment

I have a lava-lamp, which should not be on for more than 5 or 6 hours at a time. So I decided to move it from switching on/off manually to something a bit more automated. For this I reprogrammed a Sonoff WiFi switch (based on the ESP8266). Now it can be controlled via voice commands (via Alexa / Amazon’s Echo Dot), and via some simple CURL (Wifi) command line call’s. The curl’s are put in a cron (timer) process on…

Read More Read More

,
Wifi Controlled Alert Light

Wifi Controlled Alert Light

Comments 0 Comment

Intro Now why would I want to create an alert light? 😉 The use case I had in mind was work related; in our team we do monitor a bunch of kubernetes/docker server clusters, a set of software build tools/services, and an oauth secured open-api-gateway. To keep an eye on this during office hours, we have some big dashboard monitors in the room, showing nice graphs and red/green alert boxes. However, sometimes when you are working on something, it takes…

Read More Read More

,