please review my solar racing robot circuit
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Solar Garden LED Lighting
The circuit consists of two stages. The first stage is a switch or cut-off device. It detects a voltage above 0.7V from the solar panel, and the resistance between its collector-emitter terminals reduces to a very small value. The 10k...
arduino pulse to transistor power maximum
If both devices need to be powered from the battery, should the emitter be connected to the ground of the Arduino and the battery to prevent current from flowing through the Arduino ground, ensuring a clean pulse? Alternatively, can the...
Battery Charger
This high-performance charger efficiently charges gelled lead-acid batteries and automatically shuts off upon reaching a full charge. Initially, the charging current is maintained at 2 A; however, as the battery voltage increases, the current gradually decreases. Once the current drops...
SOLAR REVOLVER
How would you use an SE with a chip enable? Good question and well one thing leads to another and before you know it a new solar roller is born. The design started out as a simple example of using...
arduino Relay takes time to close
Control a relay from an Arduino-compatible board. When attempting to activate the relay from the Arduino, it takes at least a second to close, and sometimes it does not close at all. Digital pin 2 of the Arduino is connected...
Intelligent Battery-Charging Circuit Circuit
Intended for a NiCad application, this charging circuit can be used with a wide range of batteries. A low-battery detector is included, and the trip voltage is set via a 500 kΩ potentiometer. Select the resistor for the battery you...
Gray Projects
After learning to operate the device, it became evident that inertia posed a significant challenge. The constructed system is notably heavy, making it difficult to initiate motor operation at full speed. Despite having some understanding of physics, practical experience is...
Tensor Energy Coils
The concept of quadrature involves three manipulable forces rather than the two traditionally considered in electromagnetism. The electric field exhibits both positive and negative voltages, while the magnetic field consists of north and south poles. Additionally, the tempic field encompasses...
solar battery charger circuit schematic
By adjusting the Adjust pin, the output voltage and current can be regulated. A variable resistor (VR) is connected between the Adjust pin and ground to achieve an output voltage of 9 volts to the battery. Resistor R3 limits the...