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1608 refill

Jackson-Wiessing·ECE445-Refill_Dispensary·Schematics/1608_refill/1608_refill.kicad_pcb

1608 refill PCB layout, top view — open source RP2040/RP2350 board by Jackson-Wiessing

About the 1608 refill PCB

1608 refill is an open source RP2040/RP2350 PCB design by Jackson-Wiessing, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 65 components from 35 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, Flash Memory and AD622. By type, the board carries 18 resistors, 16 connectors, 16 capacitors, 7 diodes, 4 ICs and 2 transistors.

From the project

The easiest way to view our schematic and PCB layout is to download KiCad from https://www.kicad.org/download/. Once KiCad is downloaded, you'll need to clone this repo on your local machine.

The easiest way to view our schematic and PCB layout is to download KiCad from https://www.kicad.org/download/. Once KiCad is downloaded, you'll need to clone this repo on your local machine.

To see the schematic open 1608refill.kicadsch.

To see the PCB layout open 1608refill.kicadpcb.

1608 refill, from the project README
From the project README

Main components on the 1608 refill

RP2040NCP1117-3.3_SOT223Flash MemoryAD622

1608 refill bill of materials (BOM)

65 components, 35 distinct parts.

QtyPartRefs
1
RP2040
U1
1
NCP1117-3.3_SOT223
U2
1
Flash Memory
U3
1
AD622
U5
2
TIP120
Q1, Q2
1
Crystal
Y1
1
USB_B_Micro
J1
1
Pot 1
J2
1
Barrel_Jack_Switch
J3
1
USB_BOOT
J4
1
Load Cell Power
J5
1
Load Cell Data
J6
1
Inductor 1
J7
1
Inductor 2
J8
1
Pot 2
J9
1
Switch 2
J10
1
Switch 3
J11
1
Switch 1
J12
2
SWD
J13, J14
1
Screen data
J15
Show 15 more
QtyPartRefs
1
Screen Backlight
J16
1
SW_SPDT
SW4
3
LED
D1, D2, D3
2
DIODE
D4, D5
2
D
D6, D7
9
100n
C1, C4, C7, C9, C10, C12, C13, C15 +1
2
10u
C2, C3
2
27p
C5, C6
3
1u
C8, C11, C14
8
1K
R1, R2, R3, R4, R5, R6, R7, R11
1
DNF
R8
2
27
R9, R15
4
10k
R10, R13, R14, R16
1
R
R12
2
200
R17, R18

1608 refill design files

The KiCad project lives in the Jackson-Wiessing/ECE445-Refill_Dispensary repository on GitHub; these links point at the commit this page was built from.

1608 refill: common questions

What microcontroller does the 1608 refill use?

The 1608 refill is built around the RP2040, from the RP2040/RP2350 family.

How big is the 1608 refill PCB?

The 1608 refill measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 1608 refill?

65 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the 1608 refill design files?

From the Jackson-Wiessing/ECE445-Refill_Dispensary repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 1608 refill design in my own project?

The repository has no license, so all rights stay with Jackson-Wiessing. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 1608 refill 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.

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