8 layers22.3 × 77.5 mm
Tinker mantis
Tinkerbug-Robotics/TinkerRocket
Model rocket flight computer, ground station, iOS app, and simulation
279 parts1GPL-3.0
4 layers71 × 21.6 mm
EMGAmplifier
Arjun-Mahes/EMGAmplifiermade an EMG amplifier PCB from scratch that streams filtered raw and enveloped outputs wirelessly using an ESP32
- Size
- 71 × 21.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 78
- Pads
- 278
- Tracks, vias
- 453, 64
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Aug 2026
- Updated
- 13 Sep 2026
Overview
EMGAmplifier is an open-source printed circuit board by Arjun-Mahes, from the Arjun-Mahes/EMGAmplifier repository on GitHub. It is a 4-layer board of 71 × 21.6 mm with 63 parts on 78 nets, routed with 453 tracks and 64 vias.
It is built around the ESP32-S3-MINI-1-N8, TL072CDT and INA106U, with the TPS62152RGT, D3V3XA4B10LP and B5819W among its other parts. Its parts include 23 resistors, 20 capacitors, 7 ICs, 7 diodes and 3 connectors. It belongs with the audio and music boards and the ESP32 boards of this library.
Main components
9
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
TL072CDT
SO-80℃~+70℃ 1.4mA 10uV/℃ 15nV/√Hz@1kHz 16V/us 2 20pA 3mV 40mA 4MHz 5pA 6V~36V 86dB Short-Circuit Protection、Built-in compensation、Latch-up suppression SO-8 FET Input Amplifiers ROHSSTMicroelectronicsFET Input AmplifiersINA106U
SOIC-8-40℃~+85℃ 0.2uV/℃ 20uV 50V/us 86dB Capacitive load driving、Integrated precision resistor network、Current limiting / short-circuit protection Single-channel SOIC-8 Differential Amplifiers ROHSTexas InstrumentsDifferential Amplifiers
TPS62152RGT
QFN-16-EP(3x3)-40℃~+85℃@(TA) 1 17uA 1A 2.5MHz 3.3V 3V~17V Buck Buck Built-in Fixed Yes TQFN-16-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
D3V3XA4B10LP
UDFN2510-10-55℃~+150℃ 0.35pF 1uA 24W@8/20us 3.3V 4A@8/20us 9.4V 9V ESD Four channels IEC 61000-4-2、IEC 61000-4-5 UDFN2510-10 ESD and Surge Protection (TVS/ESD) ROHSDiodes IncorporatedESD And Surge Protection (TVS/ESD)
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching DiodesPVG3A104C01R00
SMD-3P,3.6x3.4mmPotentiometers & Variable ResistorsBourns
VLS3012CX-2R2M-1
SMD,3x3mm1.7A 1.7A 2.2uH 62mΩ ±20% SMD,3x3mm Power Inductors ROHSTDKPower Inductors
README
README.mdmade an EMG amplifier PCB from scratch that streams filtered raw and enveloped outputs wirelessly using an ESP32
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100nF | PCM_JLCPCB:C_0402 | C1, C3, C4, C5, C7, C8, C9, C10, C11, C12, C13, C14, C16, C17 |
| 6 | 10kΩ | PCM_JLCPCB:R_0402 | R3, R7, R8, R9, R15, R16 |
| 4 | 1kΩ | PCM_JLCPCB:R_0402 | R1, R17, R18, R21 |
| 4 | B5819W | PCM_JLCPCB:D_SOD-123 | D2, D5, D6, D7 |
| 3 | 100kΩ | PCM_JLCPCB:R_0402 | R14, R20, R22 |
| 3 | 150kΩ | PCM_JLCPCB:R_0603 | R5, R6, R11 |
| 3 | TL072CDT | PCM_JLCPCB:SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL | U2, U3, U4 |
| 2 | 1MΩ | PCM_JLCPCB:R_0402 | R2, R12 |
| 2 | 1N4148W | PCM_JLCPCB:D_SOD-123 | D3, D4 |
| 2 | 5.1kΩ | PCM_JLCPCB:R_0402 | R10, R24 |
| 2 | 75kΩ | PCM_JLCPCB:R_0603 | R4, R19 |
| 1 | 10nF | PCM_JLCPCB:C_0402 | C2 |
| 1 | 10uF | PCM_JLCPCB:C_0603 | C23 |
| 1 | 10uF | PCM_JLCPCB:C_0402 | C15 |
| 1 | 1uF | PCM_JLCPCB:C_0402 | C6 |
| 1 | 20kΩ | PCM_JLCPCB:R_0402 | R13 |
| 1 | 22uF | PCM_JLCPCB:C_0805 | C19 |
| 1 | 330pF | PCM_JLCPCB:C_0402 | C21 |
| 1 | D3V3XA4B10LP | Package_DFN_QFN:Diodes_UDFN-10_1x2.5mm_P0.5mm | U5 |
| 1 | ESP32-S3-MINI-1-N8 | esp32s3minin8footprint:XCVR_ESP32-S3-MINI-1-N8 | U7 |
| 1 | ElectrodeInputs | 3PScrewTermFootprint:SAMESKY_TB0011-350-03BE | J1 |
| 1 | INA106U | INA106Footprint:SOIC127P599X175-8N | U1 |
| 1 | PVG3A104C01R00 | footprints:RES_C01R00-L | RV1 |
| 1 | Red | PCM_JLCPCB:D_0603 | D1 |
| 1 | TPS62152 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U9 |
| 1 | Tactile Button, 160gf | PCM_JLCPCB:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2 | S1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2 |
| 1 | VLS3012CX-2R2M-1 | VLS3012CX-2R2M-1:IND_VLS3012CX-2R2M-1 | L1 |
| 1 | ~ | 3PScrewTermFootprint:SAMESKY_TB0011-350-03BE | J4 |
Questions
How big is the EMGAmplifier PCB?
It measures 71 × 21.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the EMGAmplifier use?
63 parts, built around the ESP32-S3-MINI-1-N8, TL072CDT, INA106U and TPS62152RGT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the EMGAmplifier KiCad files?
From the Arjun-Mahes/EMGAmplifier repository on GitHub, at the commit this page was made from: the board is EMGAmplifier.kicad_pcb and its schematic EMGAmplifier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EMGAmplifier design in my own project?
Its repository states no licence, so its author keeps all rights: ask Arjun-Mahes before reusing the design.
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