HardLabs

Forcegauge

szbeni·forcegauge·hw/forcegauge/forcegauge.kicad_pcb

Forcegauge PCB layout, top view — open source ESP8266 board by szbeni

About the Forcegauge PCB

Forcegauge is an open source ESP8266 PCB design by szbeni, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 60 × 40 mm, with 69 components from 36 distinct parts.

Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the FS312F-G, MT3608, TP4056, CH330N and LM1117-3.3. By type, the board carries 27 resistors, 16 capacitors, 7 ICs, 5 transistors, 5 diodes and 4 connectors.

It belongs with the iot & wireless and power & battery designs in this gallery.

From the project

Traning for climbing. Load cell with HX711 and real time plotting,

- ESP32 based Force Gauge - Aiming to help rock climbing specific training (finger excercises) - Real time plotting via wifi Webapp/Android app

Forcegauge, from the project README
From the project README

Main components on the Forcegauge

FS312F-GMT3608TP4056CH330NLM1117-3.3ESP-12EHX711

Forcegauge bill of materials (BOM)

69 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FS312F-G
U1
1
MT3608
U2
1
TP4056
U3
1
CH330N
U4
1
LM1117-3.3
U5
1
ESP-12E
U6
1
HX711
U7
1
FDS6892A
Q1
2
BSS138
Q2, Q5
1
SM2331PSA P-MOSFET
Q3
1
S8550
Q4
1
USB_B_Micro
J1
1
Battery
J2
1
OLDED_Screen
J3
1
Load Cell
J4
1
Buzzer
BZ1
3
SW_Push
SW1, SW2, SW3
1
SS34
D1
1
LED RED
D2
1
LED GREEN
D3
Show 16 more
QtyPartRefs
2
1SS355
D4, D5
1
22uH
L1
2
22uF
C1, C6
5
10uF
C2, C7, C9, C12, C15
9
100nF
C3, C4, C5, C8, C10, C11, C13, C14 +1
3
100
R1, R6, R15
2
2k
R2, R3
1
7.5k
R4
5
1k
R5, R7, R10, R22, R23
1
390k
R8
3
100k
R9, R13, R24
2
470R
R11, R12
6
10k
R14, R16, R18, R25, R26, R28
2
0R
R19, R27
1
20k
R20
1
8k2
R21

Forcegauge design files

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

Forcegauge: common questions

What microcontroller does the Forcegauge use?

The Forcegauge is built around the ESP-12E, from the ESP8266 family.

How big is the Forcegauge PCB?

The Forcegauge measures 60 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Forcegauge?

69 components, from 36 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 Forcegauge design files?

From the szbeni/forcegauge 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 Forcegauge design in my own project?

Yes, under the terms of its GPL-3.0 license, which szbeni chose for the repository.

Can I test firmware for the Forcegauge 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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