Eflashy32
About the Eflashy32 PCB
Eflashy32 is an open source PCB design by gcormier, published on GitHub. It is a 2-layer board measuring 46.6 × 20.1 mm, with 30 components from 22 distinct parts.
Other key parts include the C294963, CP2102N-A02-GQFN24 and TLV75533PDBV. By type, the board carries 11 resistors, 5 diodes, 5 capacitors, 3 ICs, 3 connectors and 1 transistor.
It belongs with the usb & debug tools designs in this gallery.
From the project
eflashy32 is a USB Type-C, CP2102N serial interface targeting ESP devices. It has a 500mA resettable fuse, ESD protection, and a switch to choose if you want to send 3.3V to the device or not.
eflashy32 is a USB Type-C, CP2102N serial interface targeting ESP devices. It has a 500mA resettable fuse, ESD protection, and a switch to choose if you want to send 3.3V to the device or not.
While Micro USB is still everywhere, USB-C needs to start taking over. My new laptop has only USB-C ports, and I wanted to have one less dongle.
The board is designed in a such a manner to allow either a 2.54mm pitch 1x6 pin header, 1.27mm pitch header, or pogo pins!
Main components on the Eflashy32
Eflashy32 bill of materials (BOM)
30 components, 22 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C294963 ESD PROTECTION | SOT-23-6 | U1 |
| 1 | CP2102N-A02-GQFN24 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U2 |
| 1 | TLV75533PDBV | SOT-23-5 | U3 |
| 1 | MMDT3904 | SOT-363_SC-70-6 | Q1 |
| 1 | DNP SERIAL | 2.54mmedge | J1 |
| 1 | 10137062-00021LF | USBC-Amphenol-10137062-00021LF | J2 |
| 1 | SERIAL2 | 1.27mmedge | J3 |
| 1 | C261942 0ZCK0050FF2E (TLC-PSMD050) | Fuse_0805_2012Metric_Pad1.15x1.40mm_HandSolder | F2 |
| 1 | JS202011CQN | SW_CuK_JS202011CQN_DPDT_Straight | SW1 |
| 1 | C2293 RX | LED_0805_2012Metric | D1 |
| 1 | C2293 TX | LED_0805_2012Metric | D2 |
| 1 | C2297 VBUS | LED_0805_2012Metric | D3 |
| 1 | C84256 PWR | LED_0805_2012Metric | D4 |
| 1 | ESD5Z3.3T1G | D_SOD-523 | D5 |
| 1 | 1UF/10V 1uF/10V | C_0805_2012Metric | C1 |
| 2 | 0.1UF/10V 0.1uF/10V | C_0805_2012Metric | C2, C9 |
| 2 | 4.7UF/6V 4.7uF/6V | C_0805_2012Metric | C5, C6 |
| 4 | 1k | R_0805_2012Metric | R1, R2, R3, R18 |
| 2 | 10K 10k | R_0805_2012Metric | R4, R5 |
| 3 | 5K1 5k1 | R_0805_2012Metric | R6, R7, R17 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 22K1 22k1 | R_0805_2012Metric | R15 |
| 1 | 47K5 47k5 | R_0805_2012Metric | R16 |
Eflashy32 design files
The KiCad project lives in the gcormier/eflashy32 repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/eflashy32.kicad_pcb
- Schematicpcb/eflashy32.kicad_sch
- BOMpcb/eflashy32-bom.csv
Eflashy32: common questions
How big is the Eflashy32 PCB?
The Eflashy32 measures 46.6 × 20.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Eflashy32?
30 components, from 22 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 Eflashy32 design files?
From the gcormier/eflashy32 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 Eflashy32 design in my own project?
The repository has no license, so all rights stay with gcormier. Use it as a reference, and ask the author before reusing the design.
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