The “CYCLING FLY PROJECT” marks the beginning of my decision to finally share a project I crafted several years ago, although this sharing is quite different. Previously, I didn’t disclose the open schematic due to various reasons. However, I’ve managed to find the time now.
As depicted in the circuit diagram, the integration of CD4017 and NE555 is utilized to control police pinch and signal lights. The burning speeds are adjusted through trimpots.
BICYCLE FUEL CIRCUIT DIAGRAM
I left the resistor labeled as “Res” empty because the resistance value varies depending on the LEDs, their quantity, and the power supply configuration. This approach might not be the most practical, but it should work unless the LEDs are of low quality.
Regarding the bicycle horn, signal, and brake light assemblies, there’s a brake knob that corresponds to them. By checking if a section of the rear brake is removed and then tightened using a screwdriver, adjustments can be made accordingly.
I use a 6V 4Ah battery, and I use a smart charger
Charge can now be selected according to the battery or battery to be used.
I approached the box, although the beverage inside wasn’t as cold as I preferred. At that moment, I didn’t have any other option available. I had brought the materials for the box that were demonstrated in the video to Karaköy. With the aid of the manual, I recreated the drawings and plans. The plaque and LEDs were already in place, and the arrangement varied based on the number of LEDs and possibilities.
When all the LEDs illuminate (specifically, the signal on one side), it draws approximately 0.5A at 6V. For this setup, I utilized CD4017, a suitable choice for low-range counting applications. This integrated circuit can count from 0 to 10 (representing a decade count). Designing the circuit using this IC not only saved board space but also reduced the time needed for circuit development. CD4017 functions as a ‘Johnson 10 stage decade counter.’
- Wide supply voltage range: 3.0V to 15V
- High noise immunity: 0.45 VDD (Typ.)
- Low power Fan out of 2 driving 74L TTL compatibility: or 1 driving 74LS
- Medium speed operation: 5.0 MHz (Typ.) with 10V VDD
- Low power: 10 µW (Typ.)
- Fully static operation