

EL Calendar
- Size
- 139 × 47 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 63
- Pads
- 217
- Tracks, vias
- 406, 104
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 13 Sep 2020
- Updated
- 13 Sep 2020
Overview
EL Calendar is an open-source printed circuit board by zephray, from the zephray/EL-Calendar repository on GitHub. It is a 2-layer board of 139 × 47 mm with 55 parts on 63 nets, routed with 406 tracks and 104 vias.
It is built around the SY8120B, W25Q32JVZPIQ and LM1117-3.3, with the USBLC6-2SC6, B72590D0050H160 and CR2032 among its other parts. Its parts include 19 capacitors, 13 resistors, 5 ICs, 4 switches and 3 connectors. It belongs with the STM32 boards of this library.
Main components
6SY8120B
SOT-23-6-40℃~+85℃ 1 200uA 2A 4V~16V 600kHz Adjustable Buck Buck Built-in Yes SOT-23-6 DC-DC Converters ROHSSlkorDC-DC ConvertersW25Q32JVZPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 133MHz 2.7V~3.6V 20 Years 32Mbit 3ms SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbondNOR FLASHLM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorisedUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)B72590D0050H160
04020.9pF@1MHz 150V 5.6V 0402 Varistors ROHSTDKVaristorsCR2032
-- Unclassified goods ROHSMaxellUncategorised
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 470nF | Capacitor_SMD:C_0603_1608Metric | C3, C7, C9, C11, C12, C14, C17 |
| 4 | 10K | Capacitor_SMD:C_0603_1608Metric | R2, R3, R6, R7 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric | C8, C15, C16, C18 |
| 4 | 18pF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C4, C5 |
| 4 | SW_Push | Button_Switch_SMD:SW_SPST_CK_RS282G05A3 | SW1, SW2, SW3, SW4 |
| 3 | 100K | Capacitor_SMD:C_0603_1608Metric | R8, R9, R10 |
| 2 | 22 | Capacitor_SMD:C_0603_1608Metric | R12, R13 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C10, C13 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric | R11 |
| 1 | 100R | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C19 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 16MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | Y2 |
| 1 | 2.2M | Capacitor_SMD:C_0603_1608Metric | R1 |
| 1 | 20K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 4.7uH | Inductor_SMD:L_Vishay_IHLP-1212 | L1 |
| 1 | B72590D0050H160 | Diode_SMD:D_0402_1005Metric | D1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | CR2032 | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | ARM_JTAG1 |
| 1 | Conn_02x10_Odd_Even | Connector_PinHeader_2.00mm:PinHeader_2x10_P2.00mm_Vertical | J2 |
| 1 | Crystal | Crystal:Crystal_SMD_TXC_9HT11-2Pin_2.0x1.2mm_HandSoldering | Y1 |
| 1 | LM1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | STM32F103CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | SY8120 | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J3 |
| 1 | W25Q32JVZP | Package_SON:WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U4 |
The 51 most common of 55 parts.
Similar boards
- 4 layers71.5 × 115.4 mm

- 4 layers71.5 × 115.4 mm

- 4 layers30 × 74 mm

- 6 layers56 × 65 mm

Mainboard gen2
zephray/NekoInk
Next gen. of NekoCal: An open-source hackable and programmable e-paper display
245 parts108 - 2 layers105.4 × 86.5 mm

Good Boy Limiter
JohnanLuca02/BYTE_Electronics
Repository for everything concerning the electronics (PCB, Electrical schemes, BOM, ...) of the robot dog project of the AiTeam called BYTE.
111 parts1 - 2 layers81.6 × 44.5 mm

ELTerm
zephray/ELTerm
ANSI/VT100-compatible serial terminal built with Raspberry Pi Pico and EL640.480-AM/AG screen
31 parts92MIT - 4 layers34 × 112 mm

Poe led bars
lucysrausch/poe-led-bar
Hardware design files for PoE+ (802.3at Type 2) powered adressable LED bars based on ESP32 and WLED
83 parts4 - 2 layers179 × 85 mm

Questions
How big is the EL Calendar PCB?
It measures 139 × 47 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EL Calendar use?
55 parts, built around the SY8120B, W25Q32JVZPIQ, LM1117-3.3 and USBLC6-2SC6. 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 EL Calendar KiCad files?
From the zephray/EL-Calendar repository on GitHub, at the commit this page was made from: the board is pcb/EL-Calendar.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the EL Calendar design in my own project?
Its repository states no licence, so its author keeps all rights: ask zephray before reusing the design.