SWITCH SCIENCE SPRESENSE Add-on BME280

This is an environmental sensor board exclusively for Sony's SPRESENSE. The "BME280" mounted on the board can measure temperature, humidity, and air pressure.
The board also has a 3.3V I2C terminal for expansion, so it can also be used as a signal level conversion board. This product does not have a mechanism to prevent reverse insertion, so when installing it on the SPRESENSE main unit, be sure to check the No. 1 pin before installing it.
Product Specifications:
- Equipped with temperature, humidity, and air pressure sensor (BME280).
(The initial I2C address is 0x76: 7-bit notation)
- Equipped with a 3.3V I2C terminal for expansion.
-I2C pull-up resistor pattern included. (Resistor not included)
- Equipped with a pin header for SPRESENSE.
- Board size: 20.32 x 33.02 mm
*About the I2C address of BME280*The initial I2C address of BME280 is 0x76.
*The I2C address can be changed to 0x77 by modifying the solder jumper (SJ1) on the surface of the board and connecting it to H.
* Regarding I2C pull-up resistors The I2C pull-up resistors (R1, R2) on the SPRESENSE side (1.8V side) are not installed at the time of shipment.
*If you want to add more resistors, solder 1005 size chip resistors to R1 and R2 on the surface of the board.
*About the pin header* The pre-soldered 18P pin header has short terminals (approximately 3mm) to fit the SPRESENSE. Please note that it may not fit into a breadboard.