Micro Node
Rappidly integrate a compact CAN enabled STM32 processor
Last updated
Rappidly integrate a compact CAN enabled STM32 processor
Last updated
The Beyond Robotix Micro Node allows you to create production grade PCBs without needing to worry about the complicated bit. Put the board to board connector on your project, wire in a sensor, a connector and now you have a CAN enabled project.
We do Quality Assurance and software upload, meaning you just have to screw the board down to your project.
You can purchase the Micro node here:
Dimensions: 26 x 20 mm
Mass: 2.2 g
Power Consumption: 30 mA (40 mA peak) at 5V
STM32L431CCU6 Processor with 256 KB of flash
200mA LDO
Short Circuit Protection - 1 A Input Fuse
Reverse Polarity Protection - Input Diode
Optional 120 ohm termination resistor via solder pad
Status LED
High reliability connector & mechanical fixing
Screw heads accessible from the top of the board
AP periph firmware support
Arduino DroneCAN support
The Micro Node requires the DF40C-80DS-0.4V(51) connector to be on the carrier board.
The footprint can be downloaded from the mouser page. Be sure to use this one! Pin numbers can be different on different footprints for the same part. We learnt the hard way.
You'll notice our connector has far many more pins than the STM32 has outputs, we've chosen this due to stock availability, as well as we'll be able to use this same connector on future projects on STMs with higher pin counts.
1
GND
2
GND
6
+3.3V
7
CAN_H
9
CAN_L
15
+5V
16
+5V
32
PB12
33
USART3_RX
PB11
34
SCL
PB13
35
USART3_TX
PB10
36
SDA
PB14
37
SPI1_CS2
PB2
38
PB15
39
PB1
40
PA8
41
PB0
42
PA9
43
SPI1_MOSI
PA7
44
PA10
45
PA6
46
PA11
47
SPI_SCK
PA5
48
PA11
49
SPI_CS1
PA4
50
SWD
PA13
51
USART2_RX
PA3
53
USART2_TX
PA2
55
PA1
57
PA0
59
NRST
66
SWC
PA14
68
PA15
70
SPI1_MISO
PA7
72
PB5
74
USART1_TX
PB6
76
USART1_RX
PB7
78
BOOT0
79
GND
80
PC13
The design requires 4x M1.6, 1.5mm standoffs. An example of these is the 9774015633R from Wurth Electronik.
This drawing is for the hole and connector positions for the carrier board, not the node itself.
A Kicad template file with required libraries can be used as a starting point to make a custom carrier board.
Arduino DroneCAN
Any sensor library for Arduino - now used in Ardupilot, PX4 and more.
We wrote an Arduino library for using DroneCAN on this Node out of the box!
AP_Periph
We support AP_Periph based firmware's for our CAN node. The Nodes ship with a generic AP_periph firmware by default.
We can flash a custom/specific firmware for your order on your request. Contact us for custom firmware to be written at admin@beyondrobotix.com
We have experience integrating virtually every type of sensor into communicating with Ardupilot or PX4, for example fuel flow sensors, ultrasound sensors, GNSS receivers, magnotometers, pressure transducers, power monitors and many more. It is also possible to adapt the output of the Micro Node to send PWM, GPIO, CAN, Serial, I2C and SPI.
Based on environmental ratings for the components and board manufacturer statements. Not a tested figure by Beyond Robotix.
The boards can be conformally coated on request. If environmental considerations are a requirement for your project, contact us at admin@beyondrobotix.com for further insight and options.
Temperature > -20 °C to 85 °C ambient temperature
We test every board we dispatch. Our process is:
Mount the node to a test carrier
Upload testing firmware
Our software checks every pin is functioning as expected
Upload customer firmware
Check node status can be seen through CAN interface (if applicable)
Package for dispatch
