License

CERN Open Hardware License

Recommend Projects

Woodpecker32 ESP32GRBL copy

1 month ago 12
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

A PCB for ESP32 GRBL : project on Github

Replaces the cheap ATMEGA32 based boards found on small chinese CNC machines, often refered to as "Woodpecker" boards and adds an ESP32 32 bit processor, so i named it Woodpecker32. Most SMD parts can be assembled by JLCPCBs assembly service. I Paid 50€ for 5 mostly assembled boards plus another 15€ for the parts that have to be hand soldered. Adding an ESP32 board you end up below 20€ per PCB, but you need to find 4 people to share the costs.

Features :

  • Bluetooth, USB and Wifi for your mini CNC !
  • 15-30V Input voltage
  • Stepper motors operate at input voltage level instead 12V
  • Stepper drivers logic voltage supply is 5V for better compatibility (level shifter to ESP32)
  • Dual MosFET motor driver for motors up to 150W
  • Optical isolation on all inputs (except door, but who has a door on a mini cnc :) )
  • Step down converters for 5V and 12V

Known Bugs :

  • R42,R46,R48 need to be ommited as some driver modules actualy have an active high reset.
  • Door input is pulled low instead of high

Documents

Sheet_1 copy copy

Sheet_2 copy copy

Sheet_3 copy copy

Sheet_4 copy copy

CNC Board copy copy

BOM

ID Name Designator Footprint Quantity
1 Ai-Thinker_NodeMCU-32SLUA U14 AI-THINKER_NODEMCU-32SLUA 1
2 100Ω L1,L4,L5,L6,L9,L8,L7,L3,L18 0805 9
3 100nF C10,C11,C16,C4,C5,C6,C7,C8,C19,C9,C24 0603 11
4 TF-01A CARD1 TF-01A 1
5 100uF C15 CASE-B_3528 1
6 SS54 D2 SMA(DO-214AC) 1
7 Header-Male-2.54_1x3 P14 HDR-3X1/2.54 1
8 19-213/Y2C-CQ2R2L/3T(CY) LED4,LED1,LED2,LED3 LED0603-R-RD 4
9 150 R29 0402 1
10 EL357N(C)(TA)-G U3,U5,U7,U9,U4,U6,U8 SOP-4_P2.54 7
11 XH-3A P1,P2,P3,P4,P5,P6 XH-3A 6
12 10K R20,R22,R23,R24,R25,R26,R27,R36,R33,R19,R34,R42,R46,R48 0402 14
13 XH-2A P9,P7,P8,P11,P12,P10,P15 XH-2A 7
14 120 R1,R2,R3,R4,R6,R7,R8,R9,R10,R11,R12,R14,R15,R16 0603 14
15 1nF C12,C13,C14,C17,C18,C20,C31 0402 7
16 Header-Male-2.54_1x4 H2 DIP-1X4P-2.54MM-M 1
17 AOD4184A Q1,Q2 TO-252-2(DPAK) 2
18 XH-4A CN1,CN2,CN3 XH-4A 3
19 100uF C1,C2,C3 CAP-D8.0XF3.5 3
20 Pololu_Breakout_A4988 A1,A2,A3 POLOLU_BREAKOUT-16_15.2X20.3MM 3
21 Header-Male-2.54_2x3 J1,J2,J3,J5 HDR-TH_6PIN-V-ROW2-COL3-MALE-PITCH2.54 4
22 B2P-VH-BL(LF)(SN) U10 B2P-VH-BL(LF)(SN) 1
23 PT15L100SP D3 TO-277 1
24 EG3001 U11 SOP-8_150MIL 1
25 10 R21 0402 1
26 10uF C22,C23,C25,C26 CAP-CASE-A_3216 4
27 SN74LVC4245APWR U15 TSSOP-24 1
28 100K R35,R37,R38,R40,R41,R44,R45 0402 7
29 2n3904S-RTK/PS Q3 SOT-23_1 1
30 1K R28,R30 0402 2
31 MKDSN1.5/2-5.08 CN4 MKDSN1.5/2-5.08 1
32 B0505S-1WR3 U1 DIP-11.6X6.0X10.16 1
33 XL1509-5.0E1 U12 SOP-8_150MIL 1
34 150uH L11 L-SMD-12.5X12.5X7.5 1
35 XL1509-12E1 U13 SOP-8_150MIL 1
36 68uH L10 606045(MM) 1
37 100uF C21,C28,C29 CAP-D6.3XF2.5 3
38 3.3uH L13,L14 1008 2
39 SS36-E3/57T D5,D6 SMC(DO-214AB) 2
40 680uF C33 CAP-TH_BD13.0-P5.00-D1.2-FD 1
41 220uF C27 CAP-TH_BD8.0-P3.50-D1.0-FD 1
42 470uF C30,C34 CAP-TH_BD10.0-P5.00-D1.0-FD 2
43 360 R31,R32 0603 2
44 19-217/BHC-ZL1M2RY/3T LED5,LED6,LED7,LED8 LED-0603 4
45 1K R17,R18,R5,R13 0603 4

Attachments

None
Success
The owner does not allow comments in this project now

Comments (0)

goToTop
你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.