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💬 UtiliPi

openhardware.io 27 Aug 2018, 08:27 last edited by openhardware.io 12 Aug 2019, 08:32

https://www.openhardware.io/view/618/UtiliPi
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11 Jul 2017, 21:11

Okay, finally got the original nrf24l01 SMD modules with the square chip visible... As exptected, things work just fine now, so the culprit of my issues was really the incompatible/fake "nrf24l01" SMD modules with the epoxy blob. If you want to use normal nrf24l01+ modules together with this smd gateway, DO NOT USE the smd module with the epoxy blob, as they won't work. Using only the fake SMD modules might work, too, but mixing the fake modules with real ones does not work.
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I added the capacitor, but there's always the same problem
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Awesome project, I wish I made something like this. (I actually wanted to make something like this when I was in school) Very clean and nice presentation and realization, with a lot of attention to details. All is very realistic, I can imagine that it took quite some time making it. Thanks for sharing the details!
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@tlustoch The node is a very simple one. So I never considered boot loaders, as the node would not need changing sketches during it's lifetime. I have boot loading functionality on my other designs, this one is a minimal board. Any extra chip would beat the purpose of the word "minimal". It's a dumb node for a reason
TCP service for Raspberry Pi NRF24l01 direct connection
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15 Mar 2016, 19:31

Firmware upload doesn't seem to work BR Jonas
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The choice of MOSFET can be tricky. Seems that irlz44n was discontinued so you may need to find one adapted to the voltage and current you want to handle. In all the cases you need to get a logic MOSFET too, meaning that they are fully open usually around 1 to 3V. Also I'm sort of confused as it seems to me that L7812CV is a Voltage regulator, not a MOSFET. So if you are actually using that in the MOSFET spot it will definitively not work. Especially if you are handling high current or voltage I would recommend using one from a reputable source for your MOSFET, I recently switched from mouser / digikey / aliexpress to mostly use http://www.arrow.com as you get free regular shipping, event if you order a couple of components (no affiliation to them whatsoever).
[SOLVED] NodeMCU ESP8266 and SPI with NRF24L01 + SD card module - sanity errors?
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28 Apr 2017, 17:33

@gohan Indeed... See e.g. my experience here: https://forum.mysensors.org/topic/2890/chinese-rubbish-or-is-it
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💬 UtiliPi

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OpenHardware.io • gateway nrf24l01 raspberry smd gpio • 17 Jun 2016, 08:02 • openhardware.io 11 Jul 2017, 21:11

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Troubleshooting • raspberry pi serial pigatewayserial tty • 5 Nov 2015, 16:46 • Michele Rappazzo 5 Nov 2015, 20:43

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