SplitFlapDriverATtiny1616V4.kicad pcb
SplitFlapDriverATtiny1616V4.kicad pcb is an open source AVR/Arduino PCB design by adamgmakes: a 2-layer, 30 × 60 mm board with 25 components (17 distinct parts). It is built around the ATTINY1616-MNR, ULN2003ADR, SN65HVD72DR, C20617301 and more.
A modular, 3D-printed split-flap display controllable over RS485 from a Raspberry Pi. Each module holds 64 characters and modules can be chained together to build a display of any width.
A modular, 3D-printed split-flap display controllable over RS485 from a Raspberry Pi. Each module holds 64 characters and modules can be chained together to build a display of any width.
YouTube Build Video: https://www.youtube.com/watch?v=-C8_AtxEEQc
Each module contains: - A 3D-printed drum that holds 64 individual flaps (one per character) - A stepper motor driving the drum through a gear train - A Hall effect sensor for homing - A custom driver PCB (ATtiny1616 + RS485 transceiver + ULN2003 stepper driver)
Built around
Parts list
25 components, 17 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATTINY1616-MNR ATtiny1616-MNR Microchip Tech | VQFN-20-1EP_3x3mm_P0.4mm_EP1.7x1.7mm | U1 |
| 1 | ULN2003ADR Texas Instruments | SOIC-16W_5.3x10.2mm_P1.27mm | U2 |
| 1 | SN65HVD72DR Texas Instruments | SOIC-8_5.3x6.2mm_P1.27mm | U3 |
| 1 | C20617301 SPX3819M5-L-3-3 | SOT-23-5 | U5 |
| 1 | C20617302 SPX3819M5-L-5-0 | SOT-23-5 | U6 |
| 1 | UPDI Programming | PinHeader_1x03_P2.54mm_Vertical | J1 |
| 4 | Conn_01x01_Pin | PinHeader_1x01_P2.54mm_Vertical | J2, J6, J7, J8 |
| 1 | C157991 Stepper Connector | JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical | J3 |
| 1 | C131339 Hall Effect | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J4 |
| 1 | Conn_01x05_Pin | PinHeader_1x05_P2.54mm_Vertical | J5 |
| 1 | C2286 LED | LED_0603_1608Metric | D1 |
| 1 | C3347 100u | C_Elec_5x5.4 | C1 |
| 4 | C1623 470n | C_0603_1608Metric | C2, C3, C6, C8 |
| 3 | C19702 10u | C_0603_1608Metric | C4, C5, C9 |
| 1 | C14663 100n | C_0603_1608Metric | C7 |
| 1 | C17477 0R | R_0805_2012Metric | R1 |
| 1 | C166918 60R | R_0603_1608Metric | R2 |
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