2 layers100 × 100 mm
2 layers83.4 × 141 mm
EECD Project
malakser/EECD-Project- Size
- 83.4 × 141 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 79
- Nets
- 105
- Pads
- 295
- Tracks, vias
- 478, 50
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Nov 2023
- Updated
- 30 Jan 2024
Overview
EECD Project is an open-source printed circuit board by malakser, from the malakser/EECD-Project repository on GitHub. It is a 2-layer board of 83.4 × 141 mm with 79 parts on 105 nets, routed with 478 tracks and 50 vias.
It is built around the ATMEGA32A-AU, LTV-844 and LL4148, with the MMBT3904 and PE014024 among its other parts. Its parts include 32 resistors, 13 capacitors, 11 connectors, 6 diodes and 5 ICs. It belongs with the ESP8266 and AVR (ATmega, ATtiny) boards of this library.
Main components
5
ATMEGA32A-AU
TQFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.7V~5.5V 2KB 32 32KB 8 Bit AVR Built-in FLASH TQFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LTV-844
DIP-16-30℃~+100℃ 1.2V 100mV@20mA,1mA 20% 200mW 300% 35V 3us 4 4us 50mA 50mA 5kV AC,DC Phototransistor DIP-16 Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
PE014024
插件,20x10mm-40℃~+85℃ 2.725kΩ 24V 400V@AC 5A 5A@30VDC、5A@250VAC 8ms 8ms AgNi One set changeover: 1C (SPDT - changeover) 插件,20x10mm Power Relays ROHSTE ConnectivityPower Relays
Parts
79| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 470R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R9, R11, R12, R13, R15, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26 |
| 12 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R8, R10, R14, R16, R27, R28, R29, R30 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C9, C11, C12 |
| 4 | LL4148 | Diode_SMD:D_MiniMELF | D1, D2, D3, D4 |
| 4 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q5, Q6, Q7, Q8 |
| 4 | PE014024 | LIB_PE014024:PE014024 | K1, K2, K3, K4 |
| 4 | Screw_Terminal_01x02 | LIB_TB001-500:CUI_TB001-500-P02BE | J2, J8, J9, J10 |
| 4 | Screw_Terminal_01x03 | LIB_TB010-508:CUI_TB010-508-03BE | J3, J4, J5, J6 |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C7, C10 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R31, R32 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C13 |
| 2 | 22pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C6 |
| 2 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5, D6 |
| 2 | LTV-844 | Package_DIP:DIP-16_W7.62mm | U3, U4 |
| 1 | 12uH | Inductor_SMD:L_Bourns-SRN4018 | L1 |
| 1 | 22K1 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 600mA | Fuse:Fuseholder_Clip-5x20mm_Littelfuse_445-030_Inline_P20.50x5.20mm_D1.30mm_Horizontal | F1 |
| 1 | 69K8 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 8MHz | LIB_CRYSTAL:XTAL_ABLS2_ABR | Y1 |
| 1 | ATmega32A-A | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_CUI_PJ-063AH_Horizontal | J7 |
| 1 | Conn_01x06 | Connector_Molex:Molex_PicoBlade_53047-0610_1x06_P1.25mm_Vertical | J11 |
| 1 | Conn_02x07_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x07_P2.54mm_Vertical | J1 |
| 1 | ESP8266-12E_ESP-12E | LIB_ESP8266-12E_ESP-12E:XCVR_ESP8266-12E_ESP-12E | U2 |
| 1 | LMR54406FDBVR | LIB_LMR54406FDBVR:SOT95P280X145-6N | IC1 |
| 1 | SW_Push | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx83-2LFS | SW1 |
Questions
How big is the EECD Project PCB?
It measures 83.4 × 141 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EECD Project use?
79 parts, built around the ATMEGA32A-AU, LTV-844, LL4148 and MMBT3904. 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 EECD Project KiCad files?
From the malakser/EECD-Project repository on GitHub, at the commit this page was made from: the board is eecd_project/eecd_project.kicad_pcb and its schematic eecd_project/eecd_project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EECD Project design in my own project?
Its repository states no licence, so its author keeps all rights: ask malakser before reusing the design.
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