Echo RP2040 Keyboard Module
About the Echo RP2040 Keyboard Module
Echo RP2040 Keyboard Module is an open source RP2040/RP2350 PCB design by phpbbireland, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 42 × 49 mm, with 49 components from 37 distinct parts.
Its main chip is the PRTR5V0U2X, from the RP2040/RP2350 family. Other key parts include the 74LVC1T45Z6-7, STM32F411RET6, XC6206P332MR-G and 74LVC1T45W6-7. By type, the board carries 20 capacitors, 11 resistors, 5 ICs, 5 LEDs, 3 connectors and 1 crystal.
It belongs with the keyboards designs in this gallery.
From the project
Echo Keyboards with QMK and VIA support
These have been tested with the current code and work flawlessly... Included: + RP2040FullsizePCBWaybarebones... Basic Keyboard files used in all testing... + echokeyboardrp2040module... Slightly smaller module, not produced yet... + echokeyboardrp2040moduleori... This is the fully tested module I used in the build. Image + isoencoderrp2040en017brd2... The QMK and Via code for the project...
Main components on the Echo RP2040 Keyboard Module
Echo RP2040 Keyboard Module bill of materials (BOM)
49 components, 37 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LVC1T45Z6-7 XC6206PxxxMR-Regulator_Linear | SOT-23 | U1 |
| 1 | STM32F411RET6 PRTR5V0U2X | SOT-143 | U2 |
| 1 | XC6206P332MR-G W25Q128JVS | SOIC_128JVSIQ_WIN | U3 |
| 1 | PRTR5V0U2X RP2040 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U4 |
| 1 | 74LVC1T45W6-7 74LVC1T45 | SOT-26 | U5 |
| 1 | X322516MOB4SI 12Mhz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | TYPE-C-31-M-12A USB_C_Receptacle_USB2.0 | USB_C_31-M-12 | J1 |
| 1 | RGB_CON | JST_EH_S3B-EH_1x03_P2.50mm_Horizontal | J2 |
| 1 | Conn_02x15_Odd_Even | IDC_2X15_1.27MM | J3 |
| 2 | TL3342F450QG SW_SPST | SW_SPST_TL3342 | BOOT1, RST1 |
| 1 | ASMD1206-150 500mA | Fuse_1206_3216Metric | F1 |
| 1 | CAPS | LED_0805_2012Metric | LED1 |
| 4 | SK6812MINI-E SK6812MINI | LED_SK6812MINI | RGB1, RGB2, RGB3, RGB4 |
| 1 | BLM18AG601SN1D 600R | BEADC1608X95N | FB1 |
| 1 | CL21A476MQYNNNE 100nF | C_0402_1005Metric | C1 |
| 1 | 0402F104M500NT 4.7uF | C_0805_2012Metric | C2 |
| 1 | 0402F104M500NT 10uF | C_0805_2012Metric | C3 |
| 1 | 0402F104M500NT 47uF | C_0805_2012Metric | C4 |
| 5 | 0402F104M500NT 100nF | C_0402_1005Metric | C5, C6, C7, C8, C9 |
| 1 | CL05C120JB5NNNC 100nF | C_0402_1005Metric | C10 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CL05C120JB5NNNC 2u2 | C_0805_2012Metric | C11 |
| 1 | CL21B225KAFNNNE 2u2 | C_0805_2012Metric | C12 |
| 1 | 0402F104M500NT 2u2 | C_0805_2012Metric | C13 |
| 1 | CL21B105KAFNFNE 100nF | C_0402_1005Metric | C14 |
| 1 | CL21A106KOQNNNE 100nF | C_0402_1005Metric | C15 |
| 1 | ECHU1C103JX5 100nF | C_0402_1005Metric | C16 |
| 1 | ECHU1C103JX5 15p | C_0402_1005Metric | C17 |
| 1 | 15p | C_0402_1005Metric | C18 |
| 2 | 100nF | C_0402_1005Metric | C19, C20 |
| 1 | 0402WGJ0220TCE 200 | R_0402_1005Metric | R1 |
| 1 | 0402WGJ0221TCE 5.1k | R_0402_1005Metric | R2 |
| 1 | 0402WGJ0512TCE 5.1k | R_0402_1005Metric | R3 |
| 2 | 0402WGJ0512TCE 27 | R_0402_1005Metric | R4, R6 |
| 1 | 0402WGJ0512TCE 10k | R_0402_1005Metric | R5 |
| 3 | 1K | R_0402_1005Metric | R7, R8, R11 |
| 1 | 10k | R_0402_1005Metric | R9 |
| 1 | 27 | R_0402_1005Metric | R10 |
Echo RP2040 Keyboard Module design files
The KiCad project lives in the phpbbireland/echo repository on GitHub; these links point at the commit this page was built from.
Echo RP2040 Keyboard Module: common questions
What microcontroller does the Echo RP2040 Keyboard Module use?
The Echo RP2040 Keyboard Module is built around the PRTR5V0U2X, from the RP2040/RP2350 family.
How big is the Echo RP2040 Keyboard Module?
The Echo RP2040 Keyboard Module measures 42 × 49 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Echo RP2040 Keyboard Module?
49 components, from 37 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 Echo RP2040 Keyboard Module design files?
From the phpbbireland/echo 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 Echo RP2040 Keyboard Module design in my own project?
Yes, under the terms of its GPL-3.0 license, which phpbbireland chose for the repository.
Can I test firmware for the Echo RP2040 Keyboard Module 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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