

LED Module E
Die beste Lampe
- Size
- 140.8 × 26 mm
- Copper layers
- 4
- Thickness
- 1 mm
- Parts
- 96
- Nets
- 56
- Pads
- 245
- Tracks, vias
- 469, 409
- Pours
- 62
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Dec 2023
- Updated
- 19 Oct 2025
Overview
LED Module E is an open-source printed circuit board by lenaschimmel, from the lenaschimmel/bestelampe repository on GitHub. It is a 4-layer board of 140.8 × 26 mm with 96 parts on 56 nets, routed with 469 tracks and 409 vias.
It is built around the 74HC245D, 24AA025E48T-I/OT and 74LVC1G32Z, with the SI3456DDV and SFW20S-2STE1LF among its other parts. Its parts include 38 resistors, 18 switches, 10 transistors, 5 capacitors and 3 ICs. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
574HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers24AA025E48T-I/OT
SOT-23-6-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 200 Years 2Kbit 400kHz 5ms I2C SOT-23-6 EEPROM ROHSMicrochip TechnologyEEPROM74LVC1G32Z
SOT-553-5-40℃~+125℃ 1 1.65V~5.5V 1.7V~2V 1.7ns@5V,50pF 32mA 32mA 74LVC Series OR Gate SOT-553-5 Logic Gates ROHSDiodes IncorporatedLogic GatesSI3456DDV
SOT-23-6-55℃~+150℃ 1 N-channel 2.5V 2W 30V 32mΩ@4.5V 32pF 345pF 4.1nC@4.5V 55pF 6A SOT-23-6 MOSFETs ROHSTECH PUBLICMOSFETsSFW20S-2STE1LF
SMD,P=1mm(交错脚)-55℃~+105℃ 1mm 20P 5.3mm Phosphor bronze Single-side Contact/Vertical Surface Mount,Vertical Tin SMD,P=1mm(交错脚) FFC, FPC (Flat Flexible) Connector Assemblies ROHSAmphenolFFC, FPC (Flat Flexible) Connector Assemblies
README
hardware/ledmodule/LED_Module_D/README.mdLED Module D
DO NOT USE
This module is flawed in countless ways, and I really recommend to not use it in any way. Not as it is, not as a basis for modification.
I just uploaded it for transparency, because I talk a lot about it on the Progress page. You can read about it's problems there.
Goal
This board should make it possible to have up to 10 high power LEDs with different colors aranged in a slim (2mm) and short (20mm) line. A TLC59711 is used to generate the 10 PWM signals, but it is not driving the LEDs directly. Instead, a line driver, MOSFETs and series resistors are used to power the LEDs without the complexities of a constant current drive.
Parts
96| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 200mR | Resistor_SMD:R_1020_2550Metric | R1, R2, R3, R4, R5, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20 +4 |
| 18 | Conn_01x01 | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm | K1, K2, K3, K4, K5, K6, K7, K10, K11, K12, K13, K14, K15, K16, K17, K18 +2 |
| 16 | 4700R | Resistor_SMD:R_0402_1005Metric | R21, R22, R23, R24, R25, R26, R27, R28, R31, R32, R33, R34, R35, R36, R37, R38 |
| 10 | Si3456DDV | Package_SO:TSOP-6_1.65x3.05mm_P0.95mm | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q11, Q12 |
| 10 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 3 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3 |
| 2 | 1000uF | Capacitor_SMD:CP_Elec_10x7.9 | C4, C5 |
| 2 | 2740R | Resistor_SMD:R_0603_1608Metric | R40, R41 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.5mm_Pad_TopOnly | H7, H8 |
| 1 | 009159008603906 | Own footprints:Dual Row Inverted Thru Board Card Edge Connector 02x04 Kyocera AVX 009159008603906 | J3 |
| 1 | 24AA025E48T-I/OT | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | 74HC245 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | 74LVC1G32 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U4 |
| 1 | LOGO | LOGO | G*** |
| 1 | Logo_Open_Hardware_Small | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | LOGO1 |
| 1 | SFW20S-2STE1LF | Own footprints:SFW20S2STE1LF_Own | J1 |
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Questions
How big is the LED Module E PCB?
It measures 140.8 × 26 mm and has 4 copper layers, 1 mm thick.
What parts does the LED Module E use?
96 parts, built around the 74HC245D, 24AA025E48T-I/OT, 74LVC1G32Z and SI3456DDV. 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 LED Module E KiCad files?
From the lenaschimmel/bestelampe repository on GitHub, at the commit this page was made from: the board is hardware/abl/LED_Module_E/LED_Module_E.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LED Module E design in my own project?
Its repository states no licence, so its author keeps all rights: ask lenaschimmel before reusing the design.