Uploaded April 2020 | Updated September 2026, 2 weeks ago

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This has been a couple months in the making - based on the success of its predecessor trigBoard v7, we now have v8. A complete overhaul of the design with a ton of new features!
- Based on the ESP32 (Combo WiFi BT Module)
- Preloaded with Base firmware to support Pushover, Push Safer, IFTTT, UDP, MQTT
- SINGLE DIGT uA SLEEP CURRENT!! Battery life? Well... long time!
- Speaking of the battery, now supports input voltage range 1.8-5V So perfect for a lithium Battery 4.2V, or even a pair of AA/AAA batteries. Your choice
- Programmable RTC, so now you can set the wake time to whatever you want to check status of the contact.
- And the heart and soul of the trigBoard is the wake trigger input, which now can wake on both OPEN/CLOSE. You pick either or both.
- Base firmware allows you to configure everything on the board over a Bluetooth connection from a simple Google chrome app written in p5.Js

trigBoard available from my Tindie store: tindie.com/products/13776

All Information is maintained here on the Wiki:
kevindarrah.com/wiki/index.php?title=TrigBoard

Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
patreon.com/kdarrah

Twitter: twitter.com/KDcircuits

For inquiries or design services:
kdcircuits.com