Mis focus controller

AllenNeuralDynamics·mis-focus-controller·hardware/pcb/pcba.kicad_pcb

About the Mis focus controller PCB

Mis focus controller is an open source RP2040/RP2350 PCB design by AllenNeuralDynamics, published on GitHub under the CC-BY-4.0 license. It is a 4-layer board measuring 80 × 60 mm, with 29 components from 8 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the POLOLU_BD65496MUV_BREAKOUT. By type, the board carries 15 jumpers, 6 connectors and 4 ICs.

It belongs with the usb & debug tools designs in this gallery.

From the project

usb serial to 6x camera focus ring utility

A device for controlling the focus on the camera modules of the Modular Insertion System.

This board uses a Raspberry Pi Pico as a USB-to-PWM interface for the 3x BD65496MUV motor drivers onboard. The boards are stackable so that a stack of two can be used to drive 6 focus motors with one USB connection. This device was designed to be used with the 12V micro-metal gearmotors from Pololu, with the magnetic encoder add-ons for closed-loop control.

Main components on the Mis focus controller

POLOLU_BD65496MUV_BREAKOUTPico

Mis focus controller bill of materials (BOM)

29 components, 8 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
3	POLOLU_BD65496MUV_BREAKOUT pololu_BD65496MUV_breakout Pololu	pololu_BD65496MUV_breakout	U1, U2, U3
1	Pico Digikey	RPi_Pico_SMD_TH	U7
3	CONN_01X06_FEMALE Conn_01x06_Female Newark	JST_SH_SM06B-SRSS-TB_1x06-1MP_P1.00mm_Horizontal	J1, J2, J3
1	Barrel_Jack_Switch Digikey	BarrelJack_CUI_PJ-102AH_Horizontal	J7
1	CONN_01X02 Conn_01x02 Pololu	PinHeader_1x02_P2.54mm_Vertical	J8
1	CONN_01X01_FEMALE Conn_01x01_Female Mouser	Banana_Jack_2Pin	J9
4	MountingHole_Pad n/a	M3 NPTH with Pad	H1, H2, H3, H4
15	SOLDERJUMPER_3_BRIDGED12 SolderJumper_3_Bridged12 n/a	SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels	JP1, JP2, JP3, JP4, JP5, JP21, JP22, JP23 +7

Mis focus controller design files

The KiCad project lives in the AllenNeuralDynamics/mis-focus-controller repository on GitHub; these links point at the commit this page was built from.

Mis focus controller: common questions

What microcontroller does the Mis focus controller use?

The Mis focus controller is built around the Pico, from the RP2040/RP2350 family.

How big is the Mis focus controller PCB?

The Mis focus controller measures 80 × 60 mm, has 4 copper layers and is 1.58 mm thick.

How many components are on the Mis focus controller?

29 components, from 8 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Mis focus controller design files?

From the AllenNeuralDynamics/mis-focus-controller repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Mis focus controller design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which AllenNeuralDynamics chose for the repository.

Can I test firmware for the Mis focus controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.