Twitter user @joeyhagedorn recently posted photos of his hacked MightyOhm Geiger Counter kit. He added an OLED display from Adafruit, a LiPo battery, Particle Argon WiFi interface, and a battery monitoring circuit that uses an AD8244 high impedance buffer to avoid loading down the HV supply.
Interested in building your own open source Geiger counter kit? Geiger Counter kits are in stock and shipping now.
Applied Science posted a video this week showing how a strong alpha source can be used to detect smoke or eliminate static cling. My Geiger Counter kit makes a cameo in the video.
Note that the SBM-20 Geiger-Müller tube that normally ships with the kit isn’t sensitive to alpha particles. To detect alpha particles you’ll need to source a Geiger-Müller tube with a mica window, such as the LND-712. There are also several options available on eBay.
My Geiger Counter kits are on sale this month during quarantine. Visit the MightyOhm Geiger Counter product page to learn more and to place an order.
With the spread of COVID-19, many folks are stuck at home for a variety of reasons. This is a great time to practice social distancing (Seattle, we got this), stay home, be safe, and work on those projects you’ve been putting off.
For folks looking for a fun new project, Geiger Counter kits are 20% off for the next month. The full bundle (kit + case + SBM-20 Geiger tube) is normally $99.95, but for the next 30 days it will be $79.95 + shipping.
You can place an order here. Be sure to select the full bundle to get the sale price!
Supplies are limited!
I sold out of Rescue Shield kits just after the holidays. Fortunately, new PCBs and components arrived last week. Hooray for no back-ordered components this time! What used to be the norm is now the exception. (Technically, green LEDs did ship a week later than the rest, but as I was still busy soldering boards it didn’t affect the overall lead time to produce kits.)
I’m happy to announce that kits are back in stock now.
You can order one on the Rescue Shield kit page.
Rescue Shield PCBs are back in stock! You can place an order on the AVR HV Rescue Shield kit page.
