HardLabs

WiFi-Addon

ghent360·PrntrBoardV2·hardware/WiFi-Addon.kicad_pcb

WiFi-Addon PCB layout, top view — open source ESP8266 board by ghent360
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About the WiFi-Addon PCB

WiFi-Addon is an open source ESP8266 PCB design by ghent360, published on GitHub under the Custom license license. It is a 2-layer board measuring 44 × 26 mm, with 28 components from 21 distinct parts.

Its main chip is the STM32F407VET6, from the ESP8266 family. Other key parts include the 74LVC125 and 24LC64T-I/SN. By type, the board carries 12 resistors, 7 capacitors, 3 ICs, 2 connectors, 1 fuse and 1 diode.

It belongs with the robotics & motion and iot & wireless designs in this gallery.

From the project

32-bit 3D Printer controller board using STM32F407 and replaceable TMC2660/2209 stepper drivers.

PrntrBoard V2 ====================== PrntrBoard V2 is the next iteration of my 3D printer controller design. The V1 was very good, except it had one major drawback - the stepper drivers were soldered on the board which would make the design expensive. This V2 design has 6 replaceable motor drivers. While traditional RAMPS based boards use pin headers to house the driver boards, I'm using PCIe 1x slots. This design has several advantages: + the driver PCB layout can be more flexible as there are fewer constraints on the driver board dimensions + drivers are placed vertically on the board which…

WiFi-Addon, from the project README
From the project README

Main components on the WiFi-Addon

74LVC125STM32F407VET624LC64T-I/SN

WiFi-Addon bill of materials (BOM)

28 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74LVC125
AMS1117-3.3
U1
1
STM32F407VET6
ESP-12F
U2
1
24LC64T-I/SN
CH340G
U3
1
PWR
J1
1
C183609
USB_B_Micro
J3
2
C5661
IDC 2x5
EXP1, EXP2
1
TLC-FSMD050
500mA
F1
1
B5819W
D1
2
CC0603KRX7R9BB104
10uF
C1, C4
2
CL10A106KP8NNNC
0.1uF
C2, C5
1
CL10B102KB8NNNC
0.1uF
C3
1
CL10A106KP8NNNC
10n
C6
1
CC0603KRX7R9BB104
0.1uF
C19
2
0603WAF1002T5E
47R
R1, R6
1
0603WAF1002T5E
470R
R2
2
0603WAF1002T5E
2k2
R3, R5
1
47R
R4
2
0603WAF1002T5E
10k
R7, R13
1
0603WAF1001T5E
10k
R8
2
0603WAF220JT5E
22
R10, R11
Show 1 more
QtyPartRefs
1
0603WAF1003T5E
100k
R12

WiFi-Addon design files

The KiCad project lives in the ghent360/PrntrBoardV2 repository on GitHub; these links point at the commit this page was built from.

WiFi-Addon: common questions

What microcontroller does the WiFi-Addon use?

The WiFi-Addon is built around the STM32F407VET6, from the ESP8266 family.

How big is the WiFi-Addon PCB?

The WiFi-Addon measures 44 × 26 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the WiFi-Addon?

28 components, from 21 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the WiFi-Addon design files?

From the ghent360/PrntrBoardV2 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the WiFi-Addon design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the WiFi-Addon without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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