Slim Node 5V-Mod
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Main post updated, I'll validate the LE33 pin layout tomorow and post back!
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If you read through the connect radio - build site old comments you'll see that I've validated the labeled LE33 image posted there. If it turns out to be wrong again, please notify.
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Looking at the schematic, this should work fine.
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Hello all, I've been using m26872 slim node to some of my nodes, but my main problem was not being able to power it with 5V because the RF is only 3.3v. So I made some modifications to the design and now I'm asking for your help to see it and validate it! I'm no expert in electronics (not at all) and this is my first attempt with KiCat.
The main idea is to power the Radio with a LE33A step down regulator! Here is the result:
BOM
C1,C2,C3 : 0.1uF capacitor P-5mm (low to fit inside IC1 socket)
C5 : 0.1uF capacitor P-2.5mm
IC1 : Atmega328p
R1 : 10k resistor 1/4W
P4 : nRF24L01+
U1: LE33AWhat do you think, will it work? My main concern is the Capacitors!
Thank you all.
Best RegardsPS: Credits and tanks to @m26872 for the base design and help
@Soloam Any specific reason to use LE33A? The quiescent current of this LDO is typ. between 0.5 (no load) and 1.5 mA . Unless you are using a > 6 V input voltage I would suggest using the 662K. Can be soldered by (a stable) hand, small footprint, very cheap and quiescent current of only 1 uA (typ.).
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@Soloam Any specific reason to use LE33A? The quiescent current of this LDO is typ. between 0.5 (no load) and 1.5 mA . Unless you are using a > 6 V input voltage I would suggest using the 662K. Can be soldered by (a stable) hand, small footprint, very cheap and quiescent current of only 1 uA (typ.).
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@SMD is a lot harder to solder, I prefere this one :)
I checked the LE33 and my layout is correct, that is the correct way to put it!
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Hi all! I have merged 3 boards into one 50x50 layout, this way I can send it to print in dirtypcbs.com and order 10 pcb's, that will make 30 nodes! The solution is similar to the one used by @m26872
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Order submitted, now I just need to wait for the arrival!
I started also a new project that will control my light switches.
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Order submitted, now I just need to wait for the arrival!
I started also a new project that will control my light switches.
