2 layers70 × 90 mm
2 layers124.5 × 94 mm
- Size
- 124.5 × 94 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 226
- Pads
- 654
- Tracks, vias
- 3,185, 324
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 30 May 2023
- Updated
- 30 May 2023
Overview
Widri is an open-source printed circuit board by VladislavSavvateev, from the VladislavSavvateev/WiDri-PCB repository on GitHub. It is a 2-layer board of 124.5 × 94 mm with 28 parts on 226 nets, routed with 3,185 tracks and 324 vias.
It is built around the ATMEGA2560-16AU, SN74AVC8T245PW and ESP32-WROOM-32, with the LM2576S-3.3 among its other parts. Its parts include 19 ICs, 3 connectors, 1 capacitor, 1 resistor and 1 diode. It belongs with the ESP32 and AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA2560-16AU
TQFP-100(14x14)-40℃~+85℃ 10bit 16MHz 256KB 4.5V~5.5V 4KB 8 Bit 86 8KB AVR Built-in FLASH TQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SN74AVC8T245PW
TSSOP-24-40℃~+85℃ 1 1.2V~3.6V 1.2V~3.6V 8 Bidirectional Level translator Power-off protection、Output enable high-impedance Tri-State TSSOP-24 Translators, Level Shifters ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
LM2576S-3.3
TO-263-5LTO-263-5L DC-DC Converters ROHSTDSEMICDC-DC Converters
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | SN74AVC8T245PW | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U6, U7, U9, U10, U11, U15, U16, U17, U18, U19 |
| 2 | ~ | Package_SO:TSOP-I-48_18.4x12mm_P0.5mm | U8, U12 |
| 1 | 100 uF | Capacitor_SMD:CP_Elec_6.3x5.4 | C1 |
| 1 | 150 uH | Inductor_SMD:L_1812_4532Metric | L1 |
| 1 | 16 MHz | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 7400 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U20 |
| 1 | 7404 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | 7408 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | 7432 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U14 |
| 1 | ATmega2560-16A | Package_QFP:TQFP-100_14x14mm_P0.5mm | U1 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U2 |
| 1 | LM2576S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U3 |
| 1 | NPN | Package_SO:TSOP-6_1.65x3.05mm_P0.95mm | Q1 |
| 1 | Proxy ICSP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | SMD CART | Connector:SMD cart edge connector | CON1 |
| 1 | WIFI ICSP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | ~ | Diode_SMD:D_SMA | D1 |
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Questions
How big is the Widri PCB?
It measures 124.5 × 94 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Widri use?
28 parts, built around the ATMEGA2560-16AU, SN74AVC8T245PW, ESP32-WROOM-32 and LM2576S-3.3. 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 Widri KiCad files?
From the VladislavSavvateev/WiDri-PCB repository on GitHub, at the commit this page was made from: the board is widri.kicad_pcb and its schematic widri.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Widri design in my own project?
Its repository states no licence, so its author keeps all rights: ask VladislavSavvateev before reusing the design.