ADDTDR/MicroBarALS317Small bragrh display board based on is31fl3730 driver and als317 led display
MicroBars is an open-source printed circuit board by ADDTDR, from the ADDTDR/MicroBarALS317 repository on GitHub. It is a 2-layer board of 65 × 30 mm with 28 parts on 51 nets, routed with 313 tracks and 40 vias.
It is built around the IS31FL3730-QFLS2-TR and SM04B-SRSS-TB(LF)(SN). Its parts include 5 capacitors, 2 resistors, 2 connectors and 1 IC.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | ~ | LTP-305G:als317 | ALS1, ALS2, ALS3, ALS4, ALS5, ALS6, ALS7, ALS8, ALS9, ALS10 |
| 4 | RPi_Hat:RPi_Hat_Mounting_Hole | , , , | |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C4 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 1uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C5 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | IS31FL3730-QFLS2-TR | LTP-305G:QFN50P400X400X80-25N-D | IC1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | pwr |
| 1 | SM04B-SRSS-TB(LF)(SN) | LTP-305G:JST_SM04B-SRSS-TB(LF)(SN) | J2 |
It measures 65 × 30 mm and has 2 copper layers, 1.6 mm thick.
28 parts, built around the IS31FL3730-QFLS2-TR and SM04B-SRSS-TB(LF)(SN). 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.
From the ADDTDR/MicroBarALS317 repository on GitHub, at the commit this page was made from: the board is MicroBars.kicad_pcb and its schematic MicroBars.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ADDTDR before reusing the design.
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