# BioAmp Upgrade

## Description

BioAmp Upgrade

## Project Details

- **Owner:** samosi
- **Created:** 7/21/2026
- **Last Updated:** 7/21/2026
- **Visibility:** Public
- **Implementation Details:** 3\-channel BioAmp EXG upgrade preserving original OUT/GND/VCC and REF/IN\+/IN\- channel structure
- **Operating Voltage:** 5V
- **Domain:** Medical

## Key Components

### AFE1 — BioAmp\-EXG\-Pill

- Manufacturer Part Number: BioAmp\-EXG\-Pill
- Manufacturer Name: Upside Down Labs
- Role Details: Channel 1: original BioAmp EXG\-Pill block; OUT1 post\-bandpass output; REF/IN\+/IN\- electrode input
- Role: Analog Front End

**Pins:**
- 2\_Elec [pin 15]
- 2\_ELec [pin 17]
- 2\_ELec [pin 16]
- Band\_Fil [pin 12]
- Band\_Fil [pin 11]
- Fil\_C [pin 9]
- Fil\_C [pin 10]
- Fil\_R [pin 8]
- Fil\_R [pin 7]
- Gain\_R [pin 13]
- Gain\_R [pin 14]
- GND [pin 2]
- IN\- [pin 6]
- IN\+ [pin 5]
- OUT [pin 1]
- REF [pin 4]
- VCC [pin 3]

### AFE2 — BioAmp\-EXG\-Pill

- Role Details: Channel 2: original BioAmp EXG\-Pill block; OUT2 post\-bandpass output; REF/IN\+/IN\- electrode input
- Manufacturer Part Number: BioAmp\-EXG\-Pill
- Manufacturer Name: Upside Down Labs
- Role: Analog Front End

**Pins:**
- 2\_Elec [pin 15]
- 2\_ELec [pin 17]
- 2\_ELec [pin 16]
- Band\_Fil [pin 12]
- Band\_Fil [pin 11]
- Fil\_C [pin 9]
- Fil\_C [pin 10]
- Fil\_R [pin 8]
- Fil\_R [pin 7]
- Gain\_R [pin 13]
- Gain\_R [pin 14]
- GND [pin 2]
- IN\- [pin 6]
- IN\+ [pin 5]
- OUT [pin 1]
- REF [pin 4]
- VCC [pin 3]

### AFE3 — BioAmp\-EXG\-Pill

- Manufacturer Part Number: BioAmp\-EXG\-Pill
- Manufacturer Name: Upside Down Labs
- Role Details: Channel 3: original BioAmp EXG\-Pill block; OUT3 post\-bandpass output; optional/not\-populated for 2\-output build
- Role: Analog Front End

**Pins:**
- 2\_Elec [pin 15]
- 2\_ELec [pin 17]
- 2\_ELec [pin 16]
- Band\_Fil [pin 12]
- Band\_Fil [pin 11]
- Fil\_C [pin 9]
- Fil\_C [pin 10]
- Fil\_R [pin 8]
- Fil\_R [pin 7]
- Gain\_R [pin 13]
- Gain\_R [pin 14]
- GND [pin 2]
- IN\- [pin 6]
- IN\+ [pin 5]
- OUT [pin 1]
- REF [pin 4]
- VCC [pin 3]

### J1 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Role Details: Pin 1 OUT1, pin 2 GND, pin 3 VCC; preserves original BioAmp output pinout
- Part Type: Connector
- Role: Output Connector
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J2 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Part Type: Connector
- Role Details: Pin 1 REF/DRL1, pin 2 IN1\+, pin 3 IN1\-; preserves original BioAmp input pinout
- Role: Input Connector
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J3 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Part Type: Connector
- Role Details: Pin 1 OUT2, pin 2 GND, pin 3 VCC; second BioAmp output
- Role: Output Connector
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J4 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Part Type: Connector
- Role: Input Connector
- Role Details: Pin 1 REF/DRL2, pin 2 IN2\+, pin 3 IN2\-; second electrode input
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J5 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Role Details: Pin 1 OUT3, pin 2 GND, pin 3 VCC; optional third BioAmp output
- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Output Connector

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J6 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Role Details: Pin 1 REF/DRL3, pin 2 IN3\+, pin 3 IN3\-; optional third electrode input
- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Input Connector

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/samosi/bioamp\-upgrade\~zp](https://flux.ai/samosi/bioamp-upgrade~zp).*

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*Generated from [https://flux\.ai/samosi/bioamp\-upgrade\~zp](https://flux.ai/samosi/bioamp-upgrade~zp)*