FLED -based Heads

Description: Shortly after the 2002 WCRG, Ori Barbut started tinkering with Ben Hitchcock's FRED SE. His aim was to create a simple, solar-powered, light-seeking head design (and in particular, to create a head design that could be based on a FRED photopopper kit with a particularly artistic PCB). This concept was discussed on the BEAM list on-and-off for some time, finally splitting into two circuit lineages -- one based on FRED, and a simpler non-FRED (but still FLED-based) design.

The project involves the development of a light-seeking robotic head, which utilizes solar power as its energy source. The design incorporates a FRED (Frequency Response Enhanced Device) photopopper kit, which is known for its efficiency in light detection and response. The primary objective is to create a device that can autonomously seek light, making it useful in various applications such as robotics and educational projects.

The circuit design can be divided into two main branches. The first lineage is based on the FRED kit, leveraging its sophisticated light-sensing capabilities to enhance the responsiveness of the head design. This circuit utilizes phototransistors or light-dependent resistors (LDRs) to detect light sources, which in turn control the movement mechanisms of the head. The FRED design is characterized by its artistic printed circuit board (PCB), which not only serves functional purposes but also contributes to the aesthetic appeal of the device.

The second lineage simplifies the design by using a non-FRED approach, while still incorporating FLED (Frequency Light Emitting Diode) technology. This variant is aimed at reducing complexity and cost while maintaining the fundamental goal of light-seeking behavior. The circuit may utilize basic operational amplifiers to process the signals from light sensors and drive small motors or servos that enable movement towards the light source.

Both designs emphasize the importance of solar power, ensuring that the devices are sustainable and can operate independently without the need for external power sources. The integration of solar cells into the circuit provides a continuous power supply, enhancing the autonomy of the light-seeking head. Overall, the project showcases innovative approaches to robotics and solar energy utilization, reflecting advancements in electronic design and engineering.Shortly after the 2002 WCRG, Ori Barbut started tinkering with Ben Hitchcock`s FRED SE. His aim was to create a simple, solar-powered, light-seeking head design (and in particular, to create a head design that could be based on a FRED photopopper kit with a particularly artistic PCB). This concept was discussed on the BEAM list on-and-off for some time, finally splitting into two circuit lineages -- one based on FRED, and a simpler non-FRED (but still FLED-based ) design.