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porchthecoder / OverKillBMS_ESPHome

Monitor your OverKill/JDB BMS with ESPHome
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Mosfet package hard to find and not in stock at EasyEDA #3

Open porchthecoder opened 2 years ago

porchthecoder commented 2 years ago

Mosfet: PJT138K_R1_00001 not in stock often. Replace with more standard SOT-23 2N7002KT1G

porchthecoder commented 2 years ago

PCB V3 in the works with 2N7002KT1G

porchthecoder commented 2 years ago

Revision done. Sent to manufacture. If no issues testing, will upload gerber.

bruvv commented 2 years ago

waiting for the gerber, any update :) ?

porchthecoder commented 2 years ago

I found mistake in the PCB layout. I fixed it, but at the same time, I have changed to a Wemos D1 Mini as it's far easier to find. Screenshot_2022-11-15_19-19-07 The ESP8266 also uses less power, so that should help on the 12/24V BMS with limited output. JLPCB won't populate the relay chip, but it's not hard to do by hand.

porchthecoder commented 2 years ago

Schematic_ESP to OverKill v4 ESP_2022-11-15.pdf

porchthecoder commented 2 years ago

Submitted to JLPCB for manufacture.

bruvv commented 2 years ago

When will you share the gerber :) ? I am very much interested in this!

porchthecoder commented 2 years ago

Once I get the prototype in and test it to make sure I didn't screw anything up again. I don't want to release a bad design on the world. I ordered 25, so if it works, I will toss some up on ebay.

bruvv commented 6 months ago

@porchthecoder any update on this?