IO and ADC Expansion Baseboard with NodeMCU ESP-12E (ESP8266) Wi-Fi Module for Electronic Circuit Prototyping and New Product Development

EBS-D1 baseboard adds missing functionality to the popular NodeMCU Wi-Fi module, which has very limited general purpose digital IO and ADC inputs. When the NodeMCU is used on the board the entire left side of the module is replaced with useful digital IOs and ADC inputs. The IO and ADC are then available through the SPI interface of the NodeMCU and can be used for circuit control and data acquisition applications in IOT products. The IO expansion circuits are implemented on the bottom side of the EBS-D1 board. 16-pin straight sockets are provided for connection of test pins or for using the prototyping circuit boards PRT-B1 and PRT-C0.

This board comes with one NodeMCU module and it is completely assembled.

Example code and libraries can be downloaded from the GIT repository at this link:

https://github.com/gkrast/SC_CONTROL

Features

·         Adds 8 digital Ios to the standard NodeMCU module

·         Adds 4-channel 10-bit ADC MCP3004 with 200ksps conversion rate

·         ADC voltage reference can be 3.3V internal or external

·         Digital IO interrupt on change event capable

• Free example application code and MCP3004 / MCP23S08 libraries