MIT
Simple tachometer, based on arduino nano. 7 digit display based on ULN2003 and 74HC595 3 buttons:
This tachometer uses ATmega328p Input capture register of Timer Counter #1. Also I used a lot of float math in this code. ToDo is to move all math into static point to improve speed. All code you can find here: https://github.com/Ogurezzz/Tachometer
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | RESET | KEY1 | KEY-SMD_4P-L6.0-W6.0-P3.90-LS10.0 | 1 |
| 2 | MODE | KEY2 | KEY-SMD_4P-L6.0-W6.0-P3.90-LS10.0 | 1 |
| 3 | POINT | KEY3 | KEY-SMD_4P-L6.0-W6.0-P3.90-LS10.0 | 1 |
| 4 | Signal | LED3 | LED-TH_BD5.0_RED | 1 |
| 5 | 74HC595N_SEGMENT | U2 | DIP-16_L19.8-W6.5-P2.54-LS7.6-BL | 1 |
| 6 | 74HC595N_DIGIT | U3 | DIP-16_L19.8-W6.5-P2.54-LS7.6-BL | 1 |
| 7 | ULM2003A | U1 | DIP-16_L19.8-W6.5-P2.54-LS7.6-BL | 1 |
| 8 | SLR0284DRC1BD | LED1 | LED-SEG-TH_SLR0284DRC1BD | 1 |
| 9 | SLR0283CRC1BD-6.3 | LED2 | LED-SEG-TH_SLR0283CRC1BD-6.3 | 1 |
| 10 | + - S | J2 | HDR-M-2.54_1X3 | 1 |
| 11 | 680R | R1 | R1206 | 1 |
| 12 | 10k | R2,R3 | R1206 | 2 |
| 13 | 1k | R4,R5,R6,R7,R8,R9,R10,R11 | R_AXIAL-0.4 | 8 |
| 14 | Arduino_Nano_Header | J1 | DIP-30_L43.18-W15.24-ARDUINONANO | 1 |
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