2 layers64 × 81.3 mm/V2.4%20Mechanical%20Seven%20Segment%20Digit.kicad_pcb.jpg?size=s&soon)
V2.4 Mechanical Seven Segment Digit
OverInvented/Flippy
The code needed to build a mechanical 7-segment display that uses electromagnets to display characters
31 parts65
2 layers100 × 100 mm
V2.2 Mechanical Seven Segment Controller
OverInvented/Flippy65The code needed to build a mechanical 7-segment display that uses electromagnets to display characters
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 53
- Nets
- 89
- Pads
- 293
- Tracks, vias
- 585, 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Dec 2024
- Updated
- 4 Feb 2025
Overview
V2.2 Mechanical Seven Segment Controller is an open-source printed circuit board by OverInvented, from the OverInvented/Flippy repository on GitHub. It is a 2-layer board of 100 × 100 mm with 53 parts on 89 nets, routed with 585 tracks and 4 vias.
It is built around the 74HC595, ULN2803A and LD1117V33. Its parts include 11 connectors, 9 capacitors, 9 diodes, 8 switches and 7 ICs. It belongs with the lEDs and displays boards and the ESP8266 boards of this library.
Main components
3
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
LD1117V33
TO-2200℃~+125℃@(Tj) 1 1.2V@(800mA) 100uV 15V 3.3V 5mA 75dB@(120Hz) 800mA Fixed Over Current Protection、Thermal Shutdown Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdFlippy
Introducing Flippy! The all-in-one modular 3D printed electromechanical seven-segment display. Through the use of 14 electromagnets, each digit is able to quickly and mechanically display both numbers and letters. This creates a unique and satisfying display.
To build your own, check the full build instructions on Instructables: https://www.instructables.com/3D-Printed-Electromechanical-7-Segment-Display/
Or watch the YouTube video below (Link: https://youtu.be/np4NRMKOG6U)
And part 2 (Link: https://youtu.be/rSe9YtodGEI)
This project falls under the CC BY-NC-SA 4.0 Licence
Parts
53| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1N4004 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8 |
| 8 | Relay 12V DC | User_Custom_Footprints:Relay_SPST_Altronics_S4252B | K1, K2, K3, K4, K5, K6, K7, K8 |
| 7 | 0.1uf | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2, C4, C5, C6, C7, C8, C9 |
| 4 | , , , | ||
| 3 | 74HC595 | User_Custom_Footprints:16_Pin_DIL_IC_Socket | U2, U4, U6 |
| 3 | ULN2803A | User_Custom_Footprints:18_Pin_DIL_IC_Socket | U1, U3, U5 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 2 | ESP8266 Extra Pins | Connector_PinHeader_2.54mm:PinHeader_1x15_P2.54mm_Vertical | J6, J9 |
| 1 | 100uf | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1 |
| 1 | 10uf | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C3 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | Black Seg Conn (-ve) | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | Digit Connectors (+ve) | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J8 |
| 1 | Fuse | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | F1 |
| 1 | LD1117V33 | LD1117V33:TO255P1020X450X1968-3 | U7 |
| 1 | MAIN POWER TERMINAL | User_Custom_Footprints:3_Way_Screw_Terminal_Altronics_(P2033B) | J11 |
| 1 | Node MCU ESP8266 | ESP8266 NodeMCU:SEEED_113990105 | A1 |
| 1 | PWR_LED | LED_THT:LED_D5.0mm | D9 |
| 1 | Shift Register Expantion Ports | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J10 |
| 1 | Spare 3.3V | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Spare 5V | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Spare GND | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Spare VDC | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | White Seg Conn (-ve) | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J7 |
More from OverInvented/Flippy
2- 2 layers64 × 81.3 mm
/V2.5%20Mechanical%20Seven%20Segment%20Digit.kicad_pcb.jpg?size=s&soon)
V2.5 Mechanical Seven Segment Digit
OverInvented/Flippy
The code needed to build a mechanical 7-segment display that uses electromagnets to display characters
28 parts65
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Questions
How big is the V2.2 Mechanical Seven Segment Controller PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the V2.2 Mechanical Seven Segment Controller use?
53 parts, built around the 74HC595, ULN2803A and LD1117V33. 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 V2.2 Mechanical Seven Segment Controller KiCad files?
From the OverInvented/Flippy repository on GitHub, at the commit this page was made from: the board is Main PCB/V2.2 Mechanical Seven Segment Controller.kicad_pcb and its schematic Digit Breakout PCBs/V2.4 (Flawed Old Design)/V2.4 Mechanical Seven Segment Digit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the V2.2 Mechanical Seven Segment Controller design in my own project?
Its repository states no licence, so its author keeps all rights: ask OverInvented before reusing the design.