HardLabs

Emg custom

rastorc3v·emg-custom·scheme/scheme/scheme.kicad_pcb

Emg custom PCB layout, top view — open source ESP32 board by rastorc3v

About the Emg custom PCB

Emg custom is an open source ESP32 PCB design by rastorc3v, published on GitHub. It is a 2-layer board measuring 56.2 × 51.1 mm, with 104 components from 27 distinct parts.

Its main chip is the ESP32-S3-WROOM-1U-N16R8, from the ESP32 family. Other key parts include the ADS131M04IPWR, AD8232ACPZ-R7, AMS1117-3.3, TLV9001SIDCKR and 74HC4051D. By type, the board carries 62 resistors, 20 capacitors, 11 connectors, 9 ICs and 2 switches.

It belongs with the sensors designs in this gallery.

From the project

New: - both hands control - new esp module (smaller size needed) - ne ADS1299 chip per hand - 8 channels - found at 30$ per chip - simpler infra - programmable gain - IMU chip per hand (gyro + accelerometer) - custom build CE based electrodes - smaller overall size expected (elec

New: - both hands control - new esp module (smaller size needed) - ne ADS1299 chip per hand - 8 channels - found at 30$ per chip - simpler infra - programmable gain - IMU chip per hand (gyro + accelerometer) - custom build CE based electrodes - smaller overall size expected (electrodes excluded)

Main components on the Emg custom

ADS131M04IPWRAD8232ACPZ-R7ESP32-S3-WROOM-1U-N16R8AMS1117-3.3TLV9001SIDCKR74HC4051D

Emg custom bill of materials (BOM)

104 components, 27 distinct parts.

QtyPartRefs
1
ADS131M04IPWR
IC1
4
AD8232ACPZ-R7
IC2, IC5, IC6, IC7
1
ESP32-S3-WROOM-1U-N16R8
IC3
1
AMS1117-3.3
IC4
1
TLV9001SIDCKR
IC8
1
74HC4051D
IC10
7
Conn_01x03_Pin
J1, J2, J3, J4, J6, J10, J11
1
USB_C_Receptacle_USB2.0_16P
J5
3
Conn_01x03_Pin
J7, J8, J9
1
SKHMQKE010
SKHMQKE010 (reset)
S1
1
SKHMQKE010
SKHMQKE010 (boot)
S2
1
0.22µF
C1
4
8.2nF
C2, C5, C12, C15
6
100nF
C3, C6, C7, C13, C16, C22
4
1µF
C4, C8, C14, C17
5
1nF
C10, C18, C19, C20, C21
2
22R
R1, R2
3
10K
R4, R5, R73
14
100K
R6, R11, R13, R15, R16, R21, R25, R28 +6
4
59K
R7, R22, R26, R58
Show 7 more
QtyPartRefs
8
43K
R8, R9, R23, R24, R27, R48, R59, R60
12
1M
R10, R12, R17, R29, R33, R34, R49, R50 +4
2
5.1K
R14, R37
8
180K
R18, R19, R30, R31, R54, R55, R66, R67
4
820K
R20, R32, R56, R68
1
CRCW12060000Z0EA
0R
R36
4
100R
R69, R70, R71, R72

Emg custom design files

The KiCad project lives in the rastorc3v/emg-custom repository on GitHub; these links point at the commit this page was built from.

Emg custom: common questions

What microcontroller does the Emg custom use?

The Emg custom is built around the ESP32-S3-WROOM-1U-N16R8, from the ESP32 family.

How big is the Emg custom PCB?

The Emg custom measures 56.2 × 51.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Emg custom?

104 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Emg custom design files?

From the rastorc3v/emg-custom repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Emg custom design in my own project?

The repository has no license, so all rights stay with rastorc3v. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Emg custom without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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