I’m sure I knock on your virtual door for more info one day 
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quick question.
Home Assistant, can you trigger an audio alarm (when for example a door is opend) - play a certain sound file ?
I don’t know much about Home Assistant, I mainly did some tests to see how well it integrates with TTN and that worked well.
My plan is to add alarms when node batteries come under a treshold, but that is still on the (long) todo list…
But yes, you can trigger alarms – see alert module.
You will need to set-up a notifier as well to carry the alert (Telegram, Fb messenger, … whatever you are using)
yes you can
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Installed mine 9 months ago. Closing in!
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Could you try Atmel AVR ISP V2 as programmer it use STK500 V2
Hi Charles,
yes I did try that (with and without GUI)
here the output connected to an arduino uno
I can’t read your picture
Tried with this (received yesterday)
Works also
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this subject is closed now.
I can’t follow up
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Clicking the picture will not enlarge it (due to a long outstanding issue on the forum).
As workaround you can right-click on the picture and then select ‘open image in new tab’.
(The menu item may be called slightly different in your browser.)
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Thanks, I wasn’t aware of this one 
Hi, I would like to get something on my workbench but I cannot find it…
I have disassembled this 1.5M Mini Digital Thermometer Hygrometer Temperature Humidity Moisture Sensor Meter Thermal Temperature Tester Detector Monitor to figure out what cheap analog sensors it uses; I have tested the unit and they are quite accurate (comparable to a digital I2C BME280 for temperature and humidity). The main chip behind the LCD is potted 
I plan to use these small cheap sensors outdoors (in a very small enclosure) with long wires between the MCU and the sensors and read them out using a simple ADC; and replace the cheap sensors every couple of months or so because the things will start to rust. The temperature sensor is an NTC thermistor (probably 10K @ 25*C) and they can be bought everywhere for 2 Eurocents/piece.
The tiny white PCB with black traces is probably the humidity/moisture sensor but I cannot find that product on Banggood or Aliexpress or RS Electronics.
=> Do you know what product it is (has a datasheet I hope) and where to buy it (just that PCB)? It will probably cost less than 25 Eurocents.
Thanks!
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no way!!! they haven’t added eMMC yet ??? 
I’m tired to either mounting partitions in flash memory or to simply set the sd-card in readonly in order
to avoid yearly sd-card corruption 
They had planned to name a version after the Pi 3 to the number of Pi, but they never finished it.
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I’m hoping that the exta memory options together with a planned future firmware update to suport Netboot will help ween us of unreliable uSD
Presumably the Pi foundation are aware of the shortcomings of uSD so there must be some compelling reason not to provide a more reliable alternative.
You might find this interesting. Fact Netboot & NFS not yet on Pi4 meant small cluster still reliant on uSD…and yes looks like they acknowledge the problem…guess all down to cost…& SOC choice/peripheral integration.
https://blog.mythic-beasts.com/2019/06/22/raspberry-pi-on-raspberry-pi/
Missed opportunity (again).
At least a SSD drive can now be connected via USB 3.0 to SATA adapter instead of USB 2.0.
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