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One excellent use of this is when in the testing phase
Adafruit specifically shows the shield used with fruit and other conductive objects
You can solder wires directly to the board or solder in either the 3×1 
Adafruit HUZZAH ESP8266 Breakout is an official Adafruit product available from Circuitrocks
Adafruit Si7021 Temperature + Humidity Breakout - 3251 v3.51 One excellent use of thisMeasure Temperature with a Sensor Made for Embedded Builds The Temperature and Humidity Sensor Si7021 Breakout Board is a temperature and humidity sensor with i2c designed for climate logging, weather nodes, and room monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds. Key details include Interface: I2C. Important: Sensor response time depends on airflow, mounting, and thermal contact.
