2 layers110 × 31.5 mm
2 layers38.8 × 44.2 mm
Led tester
CapnKernel/led-testerA circuit to characterise the behaviour of LEDs.
- Size
- 38.8 × 44.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 42
- Pads
- 126
- Tracks, vias
- 356, 101
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Apr 2023
- Updated
- 29 Sep 2023
Overview
Led tester is an open-source printed circuit board by CapnKernel, from the CapnKernel/led-tester repository on GitHub, published under the MIT licence. It is a 2-layer board of 38.8 × 44.2 mm with 37 parts on 42 nets, routed with 356 tracks and 101 vias.
It is built around the LMV358, PCF8591T/2 and MMBT3904. Its parts include 14 resistors, 7 diodes, 6 capacitors, 2 ICs and 1 transistor.
Main components
3
LMV358
SOP-8-40℃~+125℃ 10pA 10pA 1MHz 2 2.5V~5.5V 20mA 20nV/√Hz@10kHz 2uV/℃ 40uA 5mV 600V/ms 65dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOP-8 Operational Amplifier ROHSTECH PUBLICOperational Amplifier
PCF8591T/2
SOIC-16-300mil-40℃~+85℃ 1.5LSB 11.1kHz 1uA 2.5V~6V 4 40dB 750kHz~1.25MHz 8 External External、Built-in I2C Multiplexers、Power-on reset SAR Yes SOIC-16-300mil Analog to Digital Converters (ADC) ROHSNXP SemiconductorsAnalog To Digital Converters (ADC)
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)
README
README.mdled-tester
A circuit to characterise the behaviour of LEDs.
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 470R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R10 |
| 3 | R | Resistor_SMD:R_0603_1608Metric | R12, R13, R14 |
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6 |
| 2 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C3 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R11 |
| 2 | GRN | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2, D6 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 2k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | 4R7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | Arduino_Mini | aalib:Arduino Mini | M1 |
| 1 | GRN | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D3 |
| 1 | GRN | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | GRN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | D4 |
| 1 | GRN | aalib:LED_D5.0mm | D5 |
| 1 | LED_RAGB | aalib:LED_D8.0mm-4_RGB | D7 |
| 1 | LMV358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | MountingHole | aalib:AlignmentSlot | H1 |
| 1 | PCF8591 | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U1 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP2 |
| 1 | SolderJumper_2_Open | aalib:TestPad | JP1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP3 |
| 1 | TestPoint | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP1 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP2 |
Questions
How big is the Led tester PCB?
It measures 38.8 × 44.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Led tester use?
37 parts, built around the LMV358, PCF8591T/2 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 Led tester KiCad files?
From the CapnKernel/led-tester repository on GitHub, at the commit this page was made from: the board is led-tester.kicad_pcb and its schematic led-tester.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led tester design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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