An ultra compact, low cost, low-part-count board that, together with the Lolin S3 Mini w/ WiFi, exposes the full capabilities of the ADS1298 up to at 32000 sps. Microcontroller and up to 8 boards stacked design intended to plug into custom sensor/filter board with power option to support active electrodes. Intended to support HD EMG and ECG or combinations with each board capable of it’s own sample rate 256 to 32,000 sps. Mixed electrode configurations supported using sensor adaptor board supplying board ID to firmware. Boards can be mixed with the ADS1299 shield but only up to 8 total supported.