HardLabs

Picoclock

dotdust·picoclock·kicad/picoclock.kicad_sch

Picoclock

About the Picoclock PCB

Picoclock is an open source RP2040/RP2350 PCB design by dotdust, published on GitHub under the MIT license. It is a board, with 14 components from 9 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 6 switches, 6 resistors and 1 IC.

From the project

The idea is to use a Raspberry Pico board to generate a clock signal that could be directly connected to the PHI2 pin of a 6502 microprocessor.

The idea is to use a Raspberry Pico board to generate a clock signal that could be directly connected to the PHI2 pin of a 6502 microprocessor.

It is a square wave generator that can generate frequency from 1 Hz to 127 Mhz, the maximum frequency you can get from a Raspberry Pico GPIO pin configured as PWM.

Picoclock will have a four-digit, seven-segment display to inform the user about the current frequency and operational messages.

Main components on the Picoclock

Pico

Picoclock bill of materials (BOM)

14 components, 9 distinct parts.

QtyPartRefs
1
Pico
U1
1
Reset
SW1
1
Cycle
SW2
1
Shift
SW3
1
Set
SW4
1
Start/Stop
SW5
1
Pulse
SW6
1
LOGO
TM1637
6
220 ohm
R1, R2, R3, R4, R5, R6

Picoclock design files

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

Picoclock: common questions

What microcontroller does the Picoclock use?

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

How many components are on the Picoclock?

14 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Picoclock design files?

From the dotdust/picoclock repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Picoclock design in my own project?

Yes, under the terms of its MIT license, which dotdust chose for the repository.

Can I test firmware for the Picoclock 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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