115 lines
2.2 KiB
Markdown
115 lines
2.2 KiB
Markdown
|
<!--
|
||
|
|
---
|
||
|
|
name: Coral Environmental Sensor Board
|
||
|
|
class: board
|
||
|
|
type: adc,sensor
|
||
|
|
formfactor: pHAT
|
||
|
|
manufacturer: Google
|
||
|
|
description: An Environmental Sensor and Grove Breakout Board
|
||
|
|
url: https://coral.withgoogle.com/products/environmental
|
||
|
|
github: https://coral.googlesource.com/coral-cloud/
|
||
|
|
buy: https://coral.withgoogle.com/products/environmental
|
||
|
|
image: 'coral-enviro-board.png'
|
||
|
|
pincount: 40
|
||
|
|
eeprom: yes
|
||
|
|
power:
|
||
|
|
'1':
|
||
|
|
'2':
|
||
|
|
'4':
|
||
|
|
'17':
|
||
|
|
ground:
|
||
|
|
'6':
|
||
|
|
'9':
|
||
|
|
'14':
|
||
|
|
'20':
|
||
|
|
'25':
|
||
|
|
'30':
|
||
|
|
'34':
|
||
|
|
'39':
|
||
|
|
pin:
|
||
|
|
'3':
|
||
|
|
mode: i2c
|
||
|
|
'5':
|
||
|
|
mode: i2c
|
||
|
|
'8':
|
||
|
|
mode: uart
|
||
|
|
'10':
|
||
|
|
mode: uart
|
||
|
|
'12':
|
||
|
|
mode: pwm
|
||
|
|
'13':
|
||
|
|
name: OPT3002_INT
|
||
|
|
mode: input
|
||
|
|
active: low
|
||
|
|
'16':
|
||
|
|
name: Push Button
|
||
|
|
mode: input
|
||
|
|
active: low
|
||
|
|
'18':
|
||
|
|
name: OLED DC
|
||
|
|
mode: output
|
||
|
|
active: high
|
||
|
|
'19':
|
||
|
|
mode: spi
|
||
|
|
'21':
|
||
|
|
mode: spi
|
||
|
|
'22':
|
||
|
|
name: OLED RESET
|
||
|
|
mode: output
|
||
|
|
active: low
|
||
|
|
'23':
|
||
|
|
mode: spi
|
||
|
|
'24':
|
||
|
|
mode: spi
|
||
|
|
'29':
|
||
|
|
name: A71CH_RST_N
|
||
|
|
mode: output
|
||
|
|
active: low
|
||
|
|
'33':
|
||
|
|
mode: pwm
|
||
|
|
'35':
|
||
|
|
name: HDC2010_DRDY
|
||
|
|
mode: input
|
||
|
|
active: high
|
||
|
|
'40':
|
||
|
|
name: LED
|
||
|
|
mode: output
|
||
|
|
active: high
|
||
|
|
i2c:
|
||
|
|
'0x30':
|
||
|
|
name: Cyptographic Secure Element
|
||
|
|
device: ECC608
|
||
|
|
'0x40':
|
||
|
|
name: Humidity/Temperature Sensor
|
||
|
|
device: HDC2010
|
||
|
|
'0x45':
|
||
|
|
name: Wide Spectrum Ambient Light Sensor
|
||
|
|
device: OPT3002
|
||
|
|
'0x49':
|
||
|
|
name: Single-Channel ADC
|
||
|
|
device: TLA2021
|
||
|
|
'0x76':
|
||
|
|
name: Barometric Pressure Sensor
|
||
|
|
device: BMP280
|
||
|
|
|
||
|
|
-->
|
||
|
|
# Coral Environmental Sensor Board
|
||
|
|
|
||
|
|
The Coral Environmental Sensor Board adds multiple environmental sensors and Grove connectors for external devices. It works with all 40-pin Raspberry Pi variants as well as the Coral Dev Board.
|
||
|
|
|
||
|
|
## Features
|
||
|
|
|
||
|
|
* 128x32 OLED Display (SSD1306-based SPI interface)
|
||
|
|
* Ambient light sensor (OPT3002, 0x45 on i2c bus)
|
||
|
|
* Barometric pressure sensor (BMP280, 0x76 on i2c bus)
|
||
|
|
* Humidity / temperature sensor (HDC2010, 0x40 on i2c bus)
|
||
|
|
* Crypto-processor with Google keys (ECC608, 0x30 on i2c bus)
|
||
|
|
* Four Grove connectors:
|
||
|
|
1x UART
|
||
|
|
1x I2C
|
||
|
|
1x PWM
|
||
|
|
1x 3.3/5V analog (using TLA2022 ADC, 0x49 on i2c bus)
|
||
|
|
* General purpose button
|
||
|
|
* General purpose LED
|
||
|
|
|