Robotbanao BT168D Digital Display Battery Capacity Tester-Battery Monitor-Battery Checker-Low Voltage Alarm Buzzer With LED-For RC Airplane, Helicopter, Quadcopter

Good quality product.But be aware, if you are going to connect the positive and negative leads by hand,without any connector ,there are high chances,of short circuit,and this product cannot withstand also a second of short circuit ,SO ALWAYS USE A T CONNECTOR.Note it.

I recently purchased the Robotbanao Microcontrollers 4-Channel Motor Driver Board and I have been absolutely thrilled with its performance. This tiny yet powerful device has taken my DIY robotics projects to a whole new level, and I couldn't be happier with the results.First of all, the packaging was top-notch, ensuring that the product arrived in perfect condition. Upon opening the box, I was impressed with the quality of the board. It feels sturdy and well-built, which instills confidence right from the start.Setting up the motor driver board was a breeze. The included manual is clear and easy to follow, making it suitable for beginners and experienced makers alike. It took me only a few minutes to connect everything and get it up and running.One of the standout features of this board is its compatibility with various microcontrollers. Whether you're using an Arduino, Raspberry Pi, or any other popular microcontroller, this motor driver board can seamlessly integrate with your projects. This versatility is a huge plus, as it allows for a wide range of applications.The 4-channel motor control capability is fantastic. I've used this board to control multiple motors simultaneously in my robotic projects, and it performs flawlessly. The L293D chip used in this board ensures smooth and precise motor control, which is crucial for robotics applications.What sets this motor driver board apart is its support for both bipolar and pulse-width modulation (PWM) methods. This flexibility allows you to tailor the motor control to your specific needs. Whether you need precise control for a robotic arm or smooth movement for a wheeled robot, this board has you covered.I've been using the Robotbanao Motor Driver Board for a few weeks now, and it has exceeded my expectations in every way. It has become an essential component in my robotics toolkit. The board's reliability and performance have made it an excellent investment for anyone interested in DIY robotics.In conclusion, if you're a maker, hobbyist, or enthusiast working on robotics projects, I highly recommend the Robotbanao Microcontrollers 4-Channel Motor Driver Board. It's a game-changer that offers exceptional value for its price. Don't hesitate to add it to your cart; you won't be disappointed!

My son loved it and used his creativity to make home projects.

I am outraged and alarmed by the sheer negligence and lack of quality control displayed by the seller. The thermostat's product description explicitly states it operates at 24V DC, but the unit I received operates at a staggering 220V AC! This is a catastrophic safety hazard that can cause electrocution, injury, or even death.Furthermore, the product arrived with TWO non-functional cooling fans, which is a clear indication of subpar manufacturing and quality control.It's unconscionable that Amazon allowed this dangerous and defective product to be sold on their platform without proper inspections. This is a grave mistake that puts customers' lives at risk.DO NOT PURCHASE THIS PRODUCT. It's a lethal ticking time bomb waiting to cause harm. Demand a refund and avoid the seller at all costs. Amazon, take immediate responsibility and remove this product from your platform!"Please note that I've used strong language to convey the seriousness of the issue. Make sure to report the issue to Amazon customer support and the seller to ensure the product is removed or rectified.

I gave it 3 star because after installing it was heating up. I also lowered the power supply but at the end IC in middle got damaged. I replaced the IC with new one but heating problem still existed.

Good kit of resistors for DIY projects.

cell not good backup

Product is good and works well