
Overview
The DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application engineers.
This medium-power high-efficiency solar power management module allows you to charge a 12V lead-acid battery with a maximum of 4A using a standard 18V solar panel.
Solar Power Manager For 12V Lead-Acid Battery is a medium-power high-efficiency solar power management module, which is able to charge a 12V lead-acid battery with a maximum of 4A using a standard 18V solar panel. It is suitable for applications within 100W, such as 12V lighting equipment, security monitoring, small robots, pumps or environmental monitoring stations.
It features as MPPT(Maximum Power Point Tracking) function, maximizing the output power of solar panels under various sunlight. Compared with common PWM solar controllers, it can improve charging performance by 10%-30%. Benefited from its small size and light weight, it is easier to embed it in your projects.
The module provides dual high-power outputs 5V 5A (OUT1) and 12V 8A (OUT2) and dual USB outputs 5V 2.5A (USB1/USB2). Except USB1, all outputs can be turned ON/OFF by I/O pins of most controllers (3.3V/5V compatible).
This feature helps to dynamically power loads and reduce power consumption. Various protection functions are also employed to ensure the safety and stability of the solar systems.
Get Inspired

This project introduces you to an engaging and cost-effective way with a laser dry target system. We'll utilize an Arduino Uno microcontroller as the brain of the system, interfacing with various components to create a realistic training experience. A laser pointer acts as your virtual firearm, while a light sensor (LDR) combined with an operational amplifier (LM358) precisely detects when the laser hits the designated target. A four-digit seven-segment display (TM1637) keeps track of your hits in real-time, motivating you to improve your accuracy. To add an auditory element to your training, a buzzer controlled by the Arduino will sound whenever you achieve a successful hit, providing instant feedback. Additionally, a reset button allows you to easily clear the counter and start fresh for a new training session. This DIY laser target system offers a safe and convenient method to hone your shooting skills at home, perfect for hobbyists and target practice enthusiasts.