2 layers83.2 × 40 mm
2 layers31.5 × 15 mm
Downloader
BearLaboratory/downloader12a cheap usb to ttl hardware for esp8266 or esp32
- Size
- 31.5 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 14
- Pads
- 69
- Tracks, vias
- 172, 20
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 22 May 2021
- Updated
- 4 Jul 2021
Overview
Downloader is an open-source printed circuit board by BearLaboratory, from the BearLaboratory/downloader repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 31.5 × 15 mm with 16 parts on 14 nets, routed with 172 tracks and 20 vias.
It is built around the CH340K. Its parts include 4 capacitors, 3 resistors, 3 diodes, 2 ICs and 2 connectors.
Main components
1README
README.mdDownloader
一个便宜且兼容ESP系列芯片自动烧录的USB-TTL硬件工具
方便使用烧录夹具进行下载
基于CH340K抛弃价格昂贵的CP102系列芯片
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1uf | Capacitor_SMD:C_0603_1608Metric | C3, C5, C6 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 3 | LED | Diode_SMD:D_0603_1608Metric | D1, D2, D3 |
| 2 | SW_Push | my:bt-342 | SW1, SW2 |
| 1 | 0.1UF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | Conn_01x06_Female | Connector_PinHeader_2.00mm:PinHeader_1x06_P2.00mm_Horizontal | J2 |
| 1 | DDC114TU-7-F | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | ch340k | my:ESSOP-10_3.9x4.9mm_P1.00mm | U2 |
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Questions
How big is the Downloader PCB?
It measures 31.5 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Downloader use?
16 parts, built around the CH340K. 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 Downloader KiCad files?
From the BearLaboratory/downloader repository on GitHub, at the commit this page was made from: the board is downloader.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Downloader design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).