WITB MR-B3RB-PDB (Pre-production)

What's in the box — MR-B3RB-PDB (Power Distribution Board) components

The PDB board is being revised from the pre-production unit to include power measurement capability. The final production version will look different than what is shown here. An image of the production version is included at the end of this page

MR-B3RB-PDB (Power Distribution Board) Diagrams

MR-B3RB-PDB Assembled

MR-B3RB-PDB Close-Up

Production version of PDB

Below is the production version of the PDB.

• PDB includes a digital voltage and current monitoring circuit (Px4 standard INA226AQDGSRQ1)

• Different method of connecting PWM signals which avoids mixing up the channels. Servo connects to PDB. Servo and motor control PWM sent to real time controller through a single JST-XH connector (XHDP)

• LED lighting connection improved. Instead of a split power+signal cable, now uses STEMMAQT type to the PDB and a separate SPI cable to connect to real time controller. Power is injected from PDB.

• 3rd 5-pin JST Power connector included

• QDEC pinout corrected to be 1:1 (error on pre-production version meant that a reverse cable was needed)

• Fuse on board (5A populated, could use 3A depending on application.)

MR-B3RB-PDB 2nd version