Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependencies: mDot_LoRa_Sensornode_Flowmeter_impl mbed-rtos mbed
Installation of the Sensors
mDot Pinout¶
The image shows you all the Pins of the mDot and its names.
Connecting Sensors with mDot¶
Connect the pins of the Sensors according to the following tables
MAX44009¶
MAX44009 Pin | mDot Pin |
---|---|
SDA | PC_9 |
SCL | PA_8 |
VCC | VOUT |
GND | GND |
BME280¶
BME280 Pin | mDot Pin |
---|---|
SDA (SDI) | PC_9 |
SCL (SCK) | PA_8 |
(SDO) | GND |
VDD | VOUT |
GND | GND |
If you are using Adafruits Breakoutboard make sure you connected SDO to GND. More information on Page 31 of the official Datasheet.https://cdn-shop.adafruit.com/datasheets/BST-BME280_DS001-10.pdf
MPU9250¶
MPU9250 Pin | mDot Pin |
---|---|
SDA | PC_9 |
SCL | PA_8 |
VDD | VOUT |
GND | GND |
SI1143¶
SI1143 Pin | mDot Pin |
---|---|
SDA | PC_9 |
SCL | PA_8 |
VDD | VOUT |
GND | GND |
uBlox M8¶
uBlox Pin | mDot Pin |
---|---|
RX | PA_2 |
TX | PA_3 |
VDD | VOUT |
GND | GND |
You don't need to connect every Sensor just the ones that you want to use for your specific use-case.
Important: Please make sure that you've mounted some pullup Resistors betwenn vcc/sda and vcc/scl