4x5-Makropad with-433Mhz transmitter

larshasstdas·4x5-Makropad-with-433Mhz-transmitter·KiCad/Makropad/Makropad.kicad_pcb

About the 4x5-Makropad with-433Mhz transmitter PCB

4x5-Makropad with-433Mhz transmitter is an open source RP2040/RP2350 PCB design by larshasstdas, published on GitHub under the MIT license. It is a 2-layer board measuring 102.3 × 110.3 mm, with 86 components from 9 distinct parts.

Its main chip is the rp2040-zero, from the RP2040/RP2350 family. Other key parts include the 74AHCT1G125. By type, the board carries 40 diodes, 21 capacitors, 20 switches, 3 ICs, 1 connector and 1 resistor.

It belongs with the rf & radio, keyboards and displays & leds designs in this gallery.

From the project

A 4x5 Makropad with a 433Mhz transmitter that is used to power the PC. An app on the PC is supposed to do most things e.g. setting the individuell LEDs.

This project is about a Makropad that has 20 keys in a 4x5 matrix with a 433Mhz transmitter that is used to power my PC. Every key has an indiviually LED that will be changeable with the daemon on the PC. Here is a short Demo Video.

In a previous project i made a wireless power switch for my PC but as it is only a singular button it feels quite chunky. And i also always had the interest in controlling my LED strips in my room and my PC lighting i got the idea of making a makropad that combines all those features. It should also have usual makropad funktion like adjusting the sound volume and…

4x5-Makropad with-433Mhz transmitter, from the project README — From the project README

Main components on the 4x5-Makropad with-433Mhz transmitter

rp2040-zero 74AHCT1G125

4x5-Makropad with-433Mhz transmitter bill of materials (BOM)

86 components, 9 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	rp2040-zero	rp2040-zero-smd	U1
1	74AHCT1G125	SOT-353_SC-70-5	U2
1	~	STX882	U3
1	Conn_01x04_Pin	PinHeader_1x04_P2.54mm_Horizontal	J1
20	SW_Push	SW_Hotswap_Kailh_MX_1.00u	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +12
20	D	D_SOD-123	D1, D2, D3, D4, D5, D6, D7, D8 +12
20	SK6812MINI-E	LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount	D21, D22, D23, D24, D25, D26, D27, D28 +12
21	100n	C_0603_1608Metric	C1, C2, C3, C4, C5, C6, C7, C8 +13
1	330	R_0603_1608Metric	R1

4x5-Makropad with-433Mhz transmitter design files

The KiCad project lives in the larshasstdas/4x5-Makropad-with-433Mhz-transmitter repository on GitHub; these links point at the commit this page was built from.

LayoutKiCad/Makropad/Makropad.kicad_pcb
SchematicKiCad/Makropad/Makropad.kicad_sch
BOMKiCad/Pick&Place.csv

4x5-Makropad with-433Mhz transmitter: common questions

What microcontroller does the 4x5-Makropad with-433Mhz transmitter use?

The 4x5-Makropad with-433Mhz transmitter is built around the rp2040-zero, from the RP2040/RP2350 family.

How big is the 4x5-Makropad with-433Mhz transmitter PCB?

The 4x5-Makropad with-433Mhz transmitter measures 102.3 × 110.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 4x5-Makropad with-433Mhz transmitter?

86 components, from 9 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 4x5-Makropad with-433Mhz transmitter design files?

From the larshasstdas/4x5-Makropad-with-433Mhz-transmitter 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 4x5-Makropad with-433Mhz transmitter design in my own project?

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

Can I test firmware for the 4x5-Makropad with-433Mhz transmitter 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.