

Usb programmer
Basic RP2040 board
- Size
- 30 × 12 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 15
- Pads
- 43
- Tracks, vias
- 33, 0
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 May 2023
- Updated
- 27 Aug 2023
Overview
Usb programmer is an open-source printed circuit board by floxcap, from the floxcap/fly2040 repository on GitHub, published under the MIT licence. It is a 2-layer board of 30 × 12 mm with 8 parts on 15 nets, routed with 33 tracks and 0 vias.
It is built around the RT9080-33GJ5, KMR221GLFS and TYPE-C-31-M-12. Its parts include 3 resistors, 2 connectors, 2 switches and 1 IC. It belongs with the interfaces and adapters boards of this library.
Main components
3RT9080-33GJ5
TSOT-23-5-40℃~+125℃@(Tj) 1 2uA 3.3V 360mV@(600mA) 42uVrms 5.5V 600mA 75dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive TSOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSRichtek TechVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsKMR221GLFS
SMD,4.6x2.8mm-40℃~+85℃ 1.9mm 2.8mm 2N 32V 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHSC&KTactile SwitchesTYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
pcb/usb_programmer/README.mdfly2040 USB Programmer
KiCad design for a basic programmer board.
Note - This design is currently untested.
The usb-programmer board is designed to accept the P50-E2 (shaft diameter 0.68mm) which should be soldered in
to the (programmer) board.

Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | KMR221GLFS | kicad_lceda:KEY-SMD_KMR2XXGXXX | SW1, SW3 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | Conn_01x06 | kicad_lceda:ProgPinsHoles_1x06_P1.27mm | J2 |
| 1 | RT9080-33GJ5 | kicad_lceda:TSOT-23-5_L2.9-W1.6-P0.95-LS2.8-BL | U1 |
| 1 | TYPE-C-31-M-12 | kicad_lceda:USB_TYPE-C | J1 |
Questions
How big is the Usb programmer PCB?
It measures 30 × 12 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb programmer use?
8 parts, built around the RT9080-33GJ5, KMR221GLFS and TYPE-C-31-M-12. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usb programmer KiCad files?
From the floxcap/fly2040 repository on GitHub, at the commit this page was made from: the board is pcb/usb_programmer/usb_programmer.kicad_pcb and its schematic pcb/cpu_flex/cpu_flex.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb programmer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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