Afc

machdyne·af·pcb/koch/afc.kicad_pcb

Afc PCB layout, top view — open source RP2040/RP2350 board by machdyne

About the Afc PCB

Afc is an open source RP2040/RP2350 PCB design by machdyne, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 50 × 30 mm, with 44 components from 27 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q32JVSS, NCP115 and ZXCT1107. By type, the board carries 17 capacitors, 14 resistors, 4 ICs, 3 connectors, 2 diodes and 1 crystal.

From the project

Open-Source Pick and Place Autofeeder

Machdyne AF is an open-source project for a PNP autofeeder system[^1].

The autofeeder design is a closed-loop system that uses an infrared LED and phototransistor array[^2] to precisely detect the tape position. The tape is moved forward using a geared DC motor and a sprocket. The cover tape is partially separated and advanced with the tape.

The autofeeders can be chained together with 4 wires and communicate with the system controller using the I2C protocol.

Afc, from the project README — From the project README

Main components on the Afc

RP2040 W25Q32JVSS NCP115 ZXCT1107

Afc bill of materials (BOM)

44 components, 27 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2040	RP2040-QFN-56-OFFICIAL	U1
1	W25Q32JVSS	SOIC-8_3.9x4.9mm_P1.27mm	U2
1	NCP115	TSOP-5_1.65x3.05mm_P0.95mm	U3
1	ZXCT1107	SOT-23	U4
1	ECS-80-12-33-JGN-TR-12MHZ	XTAL_ECS-240-8-33-AGN-TR	Y1
1	TYPE-C-31-M-12-FIXED	USB_C_Receptacle_HRO_TYPE-C-31-M-12-BIG-PADS	J1
1	Conn_01x04_Pin	PinHeader_1x04_P2.54mm_Horizontal	J2
1	Barrel_Jack	BarrelJack_GCT_DCJ200-10-A_Horizontal	J3
1	2.6A HOLD 5A TRIP 24V	Fuse_1210_3225Metric	F1
1	BOOT	SW_Tactile_SPST_Angled_PTS645Vx39-2LFS	SW3
1	LEDG	LED_0603_1608Metric	D1
1	LEDR	LED_0603_1608Metric	D2
1	Ferrite_Bead	R_0603_1608Metric	FB1
2	15pF	C_0603_1608Metric	C1, C2
4	1uF	C_0603_1608Metric	C3, C10, C15, C18
8	100nF	C_0603_1608Metric	C4, C5, C6, C7, C8, C12, C13, C14
1	10pF50v	C_0603_1608Metric	C11
1	22uF16v	C_0805_2012Metric	C16
1	4.7uF	C_0603_1608Metric	C17
2	536R	R_0603_1608Metric	R1, R14

Show 7 more

Qty	Part	Footprint	Refs
3	5K1	R_0603_1608Metric	R2, R6, R12
2	27R	R_0603_1608Metric	R3, R4
2	1K	R_0603_1608Metric	R5, R8
1	10K	R_0603_1608Metric	R7
2	4K7	R_0603_1608Metric	R9, R10
1	50mOhm	R_1206_3216Metric	R11
1	4K7	R_1206_3216Metric	R13

Afc design files

The KiCad project lives in the machdyne/af repository on GitHub; these links point at the commit this page was built from.

Afc: common questions

What microcontroller does the Afc use?

The Afc is built around the RP2040, from the RP2040/RP2350 family.

How big is the Afc PCB?

The Afc measures 50 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Afc?

44 components, from 27 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 Afc design files?

From the machdyne/af 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 Afc design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which machdyne chose for the repository.

Can I test firmware for the Afc 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.

More boards in af

RISC-V
Af
machdyne
50 × 14 mm34 parts2LCERN-OHL-P-2.00

Afc