2 layers71.2 × 38.1 mm
2 layers62.2 × 35.6 mm
ESP8285-WLED
c-/ESP8285-WLED3ESP8285 WLED PCB
- Size
- 62.2 × 35.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 39
- Pads
- 194
- Tracks, vias
- 373, 94
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 Jul 2021
- Updated
- 9 Jul 2021
Overview
ESP8285-WLED is an open-source printed circuit board by c-, from the c-/ESP8285-WLED repository on GitHub. It is a 2-layer board of 62.2 × 35.6 mm with 58 parts on 39 nets, routed with 373 tracks and 94 vias.
It is built around the ESP8285, CH340K and TXS0101DBV, with the B5817W and UMH3N among its other parts. Its parts include 18 capacitors, 17 resistors, 5 ICs, 4 diodes and 3 connectors. It belongs with the ESP8266 boards of this library.
Main components
5
ESP8285
QFN-32-EP(5x5)-40℃~+125℃ -91dBm 170mA 2.4GHz 2.4GHz~2.4835GHz 20.5dBm 3V~3.6V 56mA 72.2Mbps SPI、UART、ADC、I2C、I2S、PWM、SDIO WiFi transceiver QFN-32-EP(5x5) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
CH340K
ESSOP-10-150mil-1mm-20℃~+70℃ 2Mbps 3.3V、5V USB 2.0 USB to serial ESSOP-10-150mil-1mm USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
TXS0101DBV
SOT-23-6-40℃~+85℃ 1 1 1.65V~3.6V 2.3V~5.5V 24Mbps Automatic direction detection、Output enable high-impedance、Integrated pull-up resistor Bidirectional Level translator Push-Pull、Open-drain SOT-23-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
B5817W
SOD-123-55℃~+150℃ 1A 1mA@20V 20V 450mV@1A Independent SOD-123 Schottky Diodes ROHShongjiachengSchottky Diodes
UMH3N
SOT-363-55℃~+150℃ 0.5uA 100 100mA 150mW 2 NPN (Pre-Biased) 250MHz 300mV 50V 5V 6.11kΩ NPN SOT-363 Digital Transistors ROHSJiangsu Changjing Electronics Technology (CJ)Digital Transistors
README
README.mdThis is a WLED board built around an ESP-8285, designed to be milled on a CNC.
Parts include the ESP8285, a PCB trace antenna, an optional external antenna connector, CH340K USB controller (with support for ESP auto-programming), TXS0101 level shifter, an ME3115 buck converter (for WS2811 projects), and a ME6211 3.3V LDO. This stuff is, for the most part, straight out of the data sheets so there shouldn't be anything too exciting.
There's no real attempt to do any antenna tuning, impedance matching, etc. I used the D1 mini pro as a guideline and basically cross my fingers.
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 12K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R6, R11, R12, R13 |
| 3 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R14, R16 |
| 3 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11, C12, C17 |
| 3 | 22u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C7, C8 |
| 3 | B5817W | Diode_SMD:D_SOD-323_HandSoldering | D1, D2, D3 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R9 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 500mA | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1, F2 |
| 2 | DNP | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16, C18 |
| 2 | MountingHole | MountingHole:MountingHole_4mm | H1, H2 |
| 1 | 100p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 10uH 1A | Inductor_SMD:L_Bourns-SRN4018 | L1 |
| 1 | 12K 1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14 |
| 1 | 220n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 220u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 22u 25v | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 26MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 4.3nH | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L2 |
| 1 | 470R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
| 1 | 499R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 5.6p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15 |
| 1 | 56K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | ANT | CPB:IPX_Connector_C496552 | J3 |
| 1 | CH340K | CPB:eSSOP-10_3.9x4.9mm_P1.00mm | U5 |
| 1 | DNP | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15 |
| 1 | ESP8285 | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U2 |
| 1 | FLASH | CPB:SW_Tact_C354947 | SW2 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Castellated | D4 |
| 1 | ME3116 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U1 |
| 1 | ME6211 | Package_TO_SOT_SMD:SOT-23_Handsoldering | U3 |
| 1 | PCB_ANTENNA | RF_Antenna:Texas_SWRA117D_2.4GHz_Left | AE1 |
| 1 | RESET | CPB:SW_Tact_C354947 | SW1 |
| 1 | TBD | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 1 | TXS0101 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U4 |
| 1 | UMH3N | Package_TO_SOT_SMD:SOT-363_SC-70-6_Handsoldering | Q1 |
| 1 | USB_B_Micro | CPB:USB_Micro-B_CNC_C10418 | J2 |
| 1 | WLED | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal | J1 |
Questions
How big is the ESP8285-WLED PCB?
It measures 62.2 × 35.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP8285-WLED use?
58 parts, built around the ESP8285, CH340K, TXS0101DBV and B5817W. 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 ESP8285-WLED KiCad files?
From the c-/ESP8285-WLED repository on GitHub, at the commit this page was made from: the board is ESP8285-WLED.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP8285-WLED design in my own project?
Its repository states no licence, so its author keeps all rights: ask c- before reusing the design.
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