ESPGeiger HW

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7 months 6 days ago #6542 by Juzzie
Replied by Juzzie on topic ESPGeiger HW
That looks brilliant, nice job! I'm interested to buy the kit too.

Owner and operator of "southofhobart" monitoring stations.
The following user(s) said Thank You: steadramon

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7 months 6 days ago #6543 by steadramon
Replied by steadramon on topic ESPGeiger HW
Thanks for the feedback! Enthusiasm for the project helps to spurr me on - juggling both the software and hardware has been a fun challenge for the last few months. I've identified some good improvement points for the software as well. This could keep me (and hopefully other contributors) busy for a little while!

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7 months 6 days ago #6544 by Simomax
Replied by Simomax on topic ESPGeiger HW
That looks good! Nice and simple. I'm curious as to why you use through-hole components and not SMT. Is it for ease of build?

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7 months 6 days ago - 7 months 6 days ago #6545 by steadramon
Replied by steadramon on topic ESPGeiger HW
Yes very much ease of build.

I considered SMT and some assembly done at the fabricators. Keeping in spirit of this being a kit and to appeal to the ESP/HomeAssistant/self build community as something that you build and tweak yourself I decided to keep it all through-hole. I plan on writing up information about the circuitry etc to then hopefully lead to a learning kit as well
Last edit: 7 months 6 days ago by steadramon.

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4 months 2 weeks ago - 4 months 2 weeks ago #6700 by steadramon
Replied by steadramon on topic ESPGeiger HW
ESPGeigerHW generates high voltage for the Geiger Tube by use of an integrated boost circuit - making 5V into ~400V.

ESPGeiger controls the high voltage at the tube with PWM generated by the ESP8266. The frequency and duty cycle can be adjusted by visiting the HV page @ http://ipaddress/hv

 
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Last edit: 4 months 2 weeks ago by steadramon.

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