PiEEG / original shield
Build the lab.Keep it open.
PiEEG turns Raspberry Pi into an eight-channel biosignal instrument—placing acquisition, computation, and application code inside one inspectable stack.

- CH01
- CH02
- CH03
- CH04
- CH05
- CH06
- CH07
- CH08
01 / Instrument thesis
The signal should never disappear inside the tool.
PiEEG keeps each layer available to inspect: electrode contact, conversion settings, SPI transfer, Python processing, and the application built on top.
02 / Open bench
One physical stack.
Four visible layers.
The bench is not a feature list. It is the actual route a weak biological potential follows before it becomes code.
- 01
CONTACT
Acquire the potential
Eight differential inputs accept wet or dry electrodes for EEG, EMG, or ECG experiments.IN / 08 - 02
CONVERT
Resolve the signal
Twenty-four-bit conversion, programmable gain, and impedance measurement keep acquisition parameters visible.ADC / 24 - 03
COMPUTE
Process at the source
SPI carries data directly into Raspberry Pi, where recording, filtering, and analysis can begin.SPI / PI - 04
BUILD
Make the signal useful
The open Python SDK and PiEEG Server provide routes into visualizations and real-time applications.PY / WS
CONNECTION MAP / OFFICIAL PINOUT03 / Physical interface
A shield is a compact contract.
PiEEG connects acquisition directly to Raspberry Pi over SPI while leaving three GPIO pins available. The relationship between board and computer stays physical, legible, and programmable.
Inspect the open hardware

04 / Technical dossier
Every claim
on the bench.
These specifications are drawn from PiEEG’s official product and open-source documentation.
- Acquisition channels
- 8 01
- ADC resolution
- 24-bit per channel 02
- Sample-rate range
- 250 SPS–16 kSPS 03
- Host interface
- SPI 04
- Programmable gain
- 1 / 2 / 4 / 6 / 8 / 12 / 24 05
- Supported signals
- EEG · EMG · ECG 06
- Computing platform
- Raspberry Pi 3 · 4 · 5 07
- Available GPIO
- 3 pins 08
- Electrode check
- Built-in impedance measurement 09
- Software
- Open-source Python SDK 10
05 / Build path
Open the signal.
Then make it yours.
PiEEG is not a medical device. When electrodes are connected, the complete setup must be battery-powered and isolated from mains. Read the safety statement.