HardLabs

Tallytime hardware

micro-henry·tallytime-hardware

Tallytime hardware PCB layout, top view — open source RP2040/RP2350 board by micro-henry

About the Tallytime hardware PCB

Tallytime hardware is an open source RP2040/RP2350 PCB design by micro-henry, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 80 × 50 mm, with 88 components from 41 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVUXIQ, USBLC6-2SC6, Ai-Thinker-Ra-02, LM358 and XC6206P332MR. By type, the board carries 28 resistors, 26 capacitors, 12 connectors, 7 ICs, 6 switches and 6 diodes.

It belongs with the rf & radio designs in this gallery.

From the project

An open-source low-cost Tally & Timecode device, powered by RP2040 & LoRa

An open-source low-cost Tally & Timecode device, powered by RP2040 & LoRa

- [ ] LTC Timecode jam & generation - [ ] Wireless sync through LoRa modem - [ ] Direct syncing through raw bitstream - [ ] Microphone passthrough - [ ] Encoder & OLED screen - [ ] USB-C & battery charging

PCB renders generated with a modified version (custom fonts) of linalinn/kicad-render

Tallytime hardware, from the project README
From the project README

Main components on the Tallytime hardware

W25Q16JVUXIQRP2040USBLC6-2SC6Ai-Thinker-Ra-02LM358XC6206P332MRTP4057

Tallytime hardware bill of materials (BOM)

88 components, 41 distinct parts.

QtyPartRefs
1
W25Q16JVUXIQ
U1
1
RP2040
U2
1
USBLC6-2SC6
U3
1
Ai-Thinker-Ra-02
U4
1
LM358
U5
1
XC6206P332MR
U6
1
TP4057
U7
1
AO3401A
Q1
1
12MHz +-10ppm 20pF
Y1
1
USB_C_Receptacle_USB2.0_16P
J1
1
SWD
J2
2
SM03B-SRSS-TB
J3, J6
1
5PIN HOLES
J4
1
UART
J5
2
TRRS Out
J7, J8
1
Conn_02x02_Counter_Clockwise
J9
1
OLED DISPLAY
J10
1
BATT
J12
1
TALLY LIGHT
J13
1
1.5A
F1
Show 21 more
QtyPartRefs
4
SKRPACE010
SW1, SW2, SW4, SW5
1
EC11
SW3
1
SW_SPDT
SW6
1
USERLED1
D1
1
USERLED2
D2
1
1N5819WS
D3
2
RED
D4, D6
1
GREEN
D5
11
100n
C1, C2, C3, C4, C5, C6, C7, C8 +3
6
10u
C10, C19, C20, C21, C22, C25
5
1u
C11, C12, C23, C24, C26
1
2.2u
C13
2
33p
C15, C16
1
22u
C17
3
1k
R1, R2, R3
9
5k1
R4, R5, R16, R17, R23, R24, R25, R26 +1
2
22
R6, R7
8
100
R8, R9, R10, R11, R12, R13, R14, R15
4
10k
R18, R19, R20, R22
1
150k
R21
1
2k
R28

Tallytime hardware design files

The KiCad project lives in the micro-henry/tallytime-hardware repository on GitHub; these links point at the commit this page was built from.

Tallytime hardware: common questions

What microcontroller does the Tallytime hardware use?

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

How big is the Tallytime hardware PCB?

The Tallytime hardware measures 80 × 50 mm, has 4 copper layers and is 1.6458 mm thick.

How many components are on the Tallytime hardware?

88 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Tallytime hardware design files?

From the micro-henry/tallytime-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Tallytime hardware design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which micro-henry chose for the repository.

Can I test firmware for the Tallytime hardware 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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