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Project description
A GRBL controller board for an ESP32 and 3 pololu-style Stepsticks to be run with the GRBL ESP32 port by Bart Dring (https://github.com/bdring/Grbl_Esp32). The step-down converter board easily found on ali with the description provided in the parts. The Board was designed specifically to be made using a cnc-type milling machine for fast and easy prototyping.
I am still having trouble with the CH340G USB-Serial converter ICs. I managed to upload the firmware, but that's about it, all my ICs were useless after that. I am planning on making another revision using a CP2102 instead. I removed the CH from my prototype, and wired a converter board using the silabs chip and everything seems to work fine.
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Component (35)
Qty
Description
CRCW0805100RFKEA
R22, R24, R20, R25, R21, R19, R23, R18
8
Standard Thick Film Chip Resistor
CC0603KRX7R9BB103
C21, C17, C16, C23, C18, C22, C19, C20
8
SURFACE-MOUNT CERAMIC MULTILAYER CAPACITORS
06033D104KAT2A
C5, C4, C8, C39, C1, C3, C14, C2
8
CeramicCapacitors
MCT06030C1001FP500
R13, R3, R4
3
1 kOhms ±1% 0.125W, 1/8W Chip Resistor 0603 (1608 Metric) Anti-Sulfur Thin Film
