4 layers80 × 100 mm
TempCtrl
charlesbaynham/DigitalTemperatureController
Schematic, PCB and source code for a high-precision digital temperature controller
186 parts14
2 layers139.1 × 95.3 mm
LightLetter W
Dylanfg123/Light-LettersThis project is a collection of PCB Letters with WS2812B lights on them. ATMEGA328P based design.
- Size
- 139.1 × 95.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 83
- Pads
- 293
- Tracks, vias
- 602, 72
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 3 Dec 2023
- Updated
- 3 Dec 2023
Overview
LightLetter W is an open-source printed circuit board by Dylanfg123, from the Dylanfg123/Light-Letters repository on GitHub. It is a 2-layer board of 139.1 × 95.3 mm with 78 parts on 83 nets, routed with 602 tracks and 72 vias.
It is built around the ATMEGA328P-AU, FT232RL and WS2812B. Its parts include 32 capacitors, 26 diodes, 9 resistors, 2 ICs and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
FT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 22pF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +9 |
| 23 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +7 |
| 5 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C3, C5, C6, C7, C9 |
| 4 | 330 | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R9 |
| 3 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C4, C8 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 16 MHz | LightLetter_FP:XTAL_ABLS7M-16.000MHZ-B-2-T | Y1 |
| 1 | 3A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | ATmega328P-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x03_P1.27mm_Vertical_SMD | J2 |
| 1 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U2 |
| 1 | FerriteBead | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | GREEN_TX | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | RED_RX | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | RESET | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | SW_SPDT | LightLetter_FP:SW_500ASSP1M6QE | SW2 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4115-03-C | J3 |
Questions
How big is the LightLetter W PCB?
It measures 139.1 × 95.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LightLetter W use?
78 parts, built around the ATMEGA328P-AU, FT232RL and WS2812B. 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 LightLetter W KiCad files?
From the Dylanfg123/Light-Letters repository on GitHub, at the commit this page was made from: the board is LightLetter_W/LightLetter_W.kicad_pcb and its schematic LightLetter_G/LightLetter_G.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LightLetter W design in my own project?
Its repository states no licence, so its author keeps all rights: ask Dylanfg123 before reusing the design.
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