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. 2017 Sep 15;12(9):e0184994. doi: 10.1371/journal.pone.0184994

Fig 1. A miniaturized BESSY for deployable electrochemical monitoring.

Fig 1

(a) Circuit diagram of a commercial, off the shelf (COTS) potentiostat featuring three on chip operational amplifiers on a MSP430FG437 microcontroller sending serial data to Redbear Labs Wifi Micro board for wireless data transmission. Only circuitry for one three-electrode channel is on board, but switching results in multiple channel potentiostat function. (b) Final potentiostat PCB (green) footprint is 2x2 cm and is connected to WiFi micro board (red); penny is shown for size comparison. (c) Contrast corrected photograph of the BESSY for differential sensing and deployment in aqueous environments.