sensor-rp2040

Overview

Sensor RP2040 is a library of sensors for the RP2040 microcontroller using shield

Installation

# clone this repository
git clone ###
cd sensor-rp2040

# create a debug/release build directory
mkdir build-debug  # or build-release, change debug for release
cd build-debug

cmake .. -DCMAKE_BUILD_TYPE=Debug -DSENSOR_TYPE=AI # or release, change AI for other sensor type

# put board to bootloader mode holding BOOTSEL button while pressing reset button

# build and upload firmware
make -j 16 install

Sensor types

Sensor type	Description	Manufacturer	Interface
SCL3300	2 axis inclinometer, range +- 90°	Murata	SPI
SCL3400	2 axis inclinometer, range +- 30°	Murata	SPI
AI	Analog input - 4 analog inputs	Generic	Analog
AnalogInput	Same as "AI"	Generic	Analog
4DI4DO	4 digital inputs and 4 digital outputs	Generic	Digital
ABP	pressure sensor, range 0-60 mbar = 0-6 kPa (differential)	Honeywell	I2C/SPI
DEVID_TEMP_DS18B20	Temperature sensor DS18B20	Maxim	1-Wire
DEVID_TIER	Tier sensor	Generic	Digital
DEVID_ENC_1000PPR	Encoder 1000 pulses per revolution	Generic	Digital
DEVID_IO_3AI	3 analog inputs	Generic	Analog
DEVID_IO_4AI	4 analog inputs	Generic	Analog
DEVID_IO_4DI_4DO	4 digital inputs and 4 digital outputs	Generic	Digital
DEVID_IO_8DI_8DO	8 digital inputs and 8 digital outputs	Generic	Digital
DEVID_LIGHT_SOUND_POLLUTION	Light and sound pollution sensor	Generic	Analog/Digital
DEVID_PRESSURE_600MBAR	Pressure sensor, range 0-600 mbar	Generic	I2C/SPI
DEVID_PRESSURE_60MBAR	Pressure sensor, range 0-60 mbar	Generic	I2C/SPI
DEVID_STRAIN_24BIT	Strain gauge sensor, 24-bit resolution	Generic	Analog
DEVID_AIR_POL_CO_NOX_VOC	Air pollution sensor for CO, NOx, and VOC	Generic	I2C/SPI
DEVID_AIR_POL_CO_NOX_VOC_PM	Air pollution sensor for CO, NOx, VOC, and PM	Generic	I2C/SPI
DEVID_AIR_POL_CO_NOX_VOC_PM_GPS	Air pollution sensor for CO, NOx, VOC, PM, and GPS	Generic	I2C/SPI
DEVID_AIR_POL_PM	Air pollution sensor for particulate matter	Generic	I2C/SPI
DEVID_ANGLE_XY_30	Angle sensor, XY plane, range +- 30°	Generic	Analog/Digital
DEVID_ANGLE_XY_90	Angle sensor, XY plane, range +- 90°	Generic	Analog/Digital
DEVID_CUTTER	Cutter sensor	Generic	Digital
DEVID_DIST_225MM	Distance sensor, range 225 mm	Generic	Analog/Digital
DEVID_DIST_22MM	Distance sensor, range 22 mm	Generic	Analog/Digital
DEVID_ACCEL_XYZ	Accelerometer, 3-axis	Generic	I2C/SPI

Other remarks

low latency USB Serial

echo 1 | sudo tee /sys/bus/usb-serial/devices/ttyUSB0/latency_timer  # change ttyUSB0 for your device

Using Udev Rules under /etc/udev/rules.d/50-custom.rules:

KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="dialout"

# USB latency rules
ACTION=="add", SUBSYSTEM=="usb-serial", DRIVER=="ftdi_sio", ATTR{latency_timer}="1"

Changelog

2024.12.17 - SR

• Removed LDO for 3V3_EXT
• removed USR-switch
• replaced MAX13487 with SP3485EN-L/TR (10Mbps)