# teensy led controller ## Description powering hub75 led matrix with teensy 4.1 ## Project Details - **Owner:** onetyme - **Created:** 9/22/2025 - **Last Updated:** 9/22/2025 - **Visibility:** Public ## Key Components ### DS1 — [Teensy 4.1](https://www.flux.ai/adrian95/teensy-4p1~xp5.md) - Part Type: Development Board - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2942/DEV-16996_Web.pdf - Manufacturer Name: SparkFun Electronics - Manufacturer Part Number: DEV-16996 **Pins:** - 0_ [pin 2] - 1_ [pin 3] - 10_ [pin 12] - 11_ [pin 13] - 12_ [pin 14] - 13_ [pin 35] - 14_ [pin 36] - 15_ [pin 37] - 16_ [pin 38] - 17_ [pin 39] - 18_ [pin 40] - 19_ [pin 41] - 2_ [pin 4] - 20_ [pin 42] - 21_ [pin 43] - 22_ [pin 44] - 23_ [pin 45] - 24_ [pin 16] - 25_ [pin 17] - 26_ [pin 18] - 27_ [pin 19] - 28_ [pin 20] - 29_ [pin 21] - 3_ [pin 5] - 30_ [pin 22] - 31_ [pin 23] - 32_ [pin 24] - 33_ [pin 25] - 34_ [pin 26] - 35_ [pin 27] - 36_ [pin 28] - 37_ [pin 29] - 38_ [pin 30] - 39_ [pin 31] - 3V [pin 15] - 3V3 [pin 46] - 4_ [pin 6] - 40_ [pin 32] - 41_ [pin 33] - 5_ [pin 7] - 5V [pin 48] - 6_ [pin 8] - 7_ [pin 9] - 8_ [pin 10] - 9_ [pin 11] - G_1 [pin 1] - G_2 [pin 34] - G_3 [pin 47] ### U1 — [SN74AHCT245N](https://www.flux.ai/lcsc/sn74ahct245n~20cg.md) - Part Type: Buffers / Drivers - Manufacturer Part Number: SN74AHCT245N - Package or Case Code: PDIP-20_L25.9-W6.6-P2.54-LS7.9-BL - LCSC Part Number: C1548096 - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) **Pins:** - ~{OE} [pin 19] - A1 [pin 2] - A2 [pin 3] - A3 [pin 4] - A4 [pin 5] - A5 [pin 6] - A6 [pin 7] - A7 [pin 8] - A8 [pin 9] - B1 [pin 18] - B2 [pin 17] - B3 [pin 16] - B4 [pin 15] - B5 [pin 14] - B6 [pin 13] - B7 [pin 12] - B8 [pin 11] - DIR [pin 1] - GND [pin 10] - VCC [pin 20] ### U2 — [SN74AHCT245N](https://www.flux.ai/lcsc/sn74ahct245n~20cg.md) - Manufacturer Name: TI(德州仪器) - Part Type: Buffers / Drivers - Manufacturer Part Number: SN74AHCT245N - JLCPCB Part Class: Extended Part - Package or Case Code: PDIP-20_L25.9-W6.6-P2.54-LS7.9-BL - LCSC Part Number: C1548096 **Pins:** - ~{OE} [pin 19] - A1 [pin 2] - A2 [pin 3] - A3 [pin 4] - A4 [pin 5] - A5 [pin 6] - A6 [pin 7] - A7 [pin 8] - A8 [pin 9] - B1 [pin 18] - B2 [pin 17] - B3 [pin 16] - B4 [pin 15] - B5 [pin 14] - B6 [pin 13] - B7 [pin 12] - B8 [pin 11] - DIR [pin 1] - GND [pin 10] - VCC [pin 20] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/onetyme/teensy-led-controller~42](https://www.flux.ai/onetyme/teensy-led-controller~42).* --- *Generated from [https://www.flux.ai/onetyme/teensy-led-controller~42](https://www.flux.ai/onetyme/teensy-led-controller~42)*