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  • SainSmart InstaBots Upright Rover(Self-Balancing Robot With Arduino)

    I have still not managed to get a rational reply from Sain Smart. They keep sending emails that have nothing to do with my issue. They have now offered to replace the two processor boards; however this has nothing to do with my issue, and will not magically make the sensor expansion boards work ? Despite these email offers they never do anything, no action.

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  • SainSmart InstaBots Upright Rover(Self-Balancing Robot With Arduino)

    Forgot to mention that while trying to get the Meg shield on the board I saw that the motor plug pins short onto the top of Mega USB connector. So I filed them down and covered with insulator. I guess many people would get caught with this and short circuit the power. Some thing they don't bother fixing or telling poeple about.

    Forgot to mention that while trying to get the Meg shield on the board I saw that the motor plug pins short onto the top of Mega USB connector. So I filed them down and covered with insulator. I guess many people would get caught with this and short circuit the power. Some thing they don't bother fixing or telling poeple about.

    I purchased the SainSmart InstaBots Upright Rover Kit Pro, and have had numerous issues with over 20 useless email exchanges with them, with no result. Still no working product.The first thing I noticed when unpacking was the terrible quality of the boards, socket were not aligned the connector pins usually 90 degrees to the board were at all different angles, some about 80 degree. On first go it was impossible to get the Mega expansion board to line up with the Mega board. I had to get long nose pliers and adjust all the pins, some off by10 degree. After about 30 minutes the 2 boards could go together. Repeated process for the UNO expansion board. Immediate impressions, this stuff is junk.After fully assembling the kit neither the remote nor the Rover worked. So started debugging, pul...

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    I purchased the SainSmart InstaBots Upright Rover Kit Pro, and have had numerous issues with over 20 useless email exchanges with them, with no result. Still no working product.The first thing I noticed when unpacking was the terrible quality of the boards, socket were not aligned the connector pins usually 90 degrees to the board were at all different angles, some about 80 degree. On first go it was impossible to get the Mega expansion board to line up with the Mega board. I had to get long nose pliers and adjust all the pins, some off by10 degree. After about 30 minutes the 2 boards could go together. Repeated process for the UNO expansion board. Immediate impressions, this stuff is junk.After fully assembling the kit neither the remote nor the Rover worked. So started debugging, pulled it all apart.First I could not program the remote UNO. I eventually discovered that the expansion shield when connected to the UNO, stops the UNO USB port working ? I downloaded the program without the shield on. I tested the expansion board on a Funtronics UNO and the same issue, the usb port stopped working.Issue 1: So the UNO expansion shield is faulty. I replaced the SainSmart InstaBots SS-SBR-2.0 Sensor Shield with another brand I had at hand. so down $6.11.Next once the program was downloaded the LCD screen was garbled, junk characters. I started to try different libraries and eventually found one that worked. The code and library provided does not work, as this LCD comes from various manufacturers, this was not a Sainsmart board provided.Issue 2: LCD library and code not for the board provided. Next the Rover. I had connected an 11V external supply and the motors did not work. I traced through the circuit and found the regulator was only outputting 2 Volts. Having circuit diagrams for this boards would help been a great help and maybe I could have repaired it. But no circuit diagrams on their site, pathetic. The absence of SainSmart documentation is unbelievable. Compare this to other reputable providers such as Funtronics. I had a Duinotech brand L298 board and got that going, just to check the code and connections, all OK, motors work.Issue 3: The SainSmart Protoshield Shield Mega expansion board is faulty. so down $11.99.I Expected 1 hour work to get this going and now I have nothing. Only due to a very poor quality kit. With over 30 years of electronics this poor quality is unbelievable. A series of emails to their support provided absolutely ridiculous and laughable advice.Finally they agreed to replace the fully parts only if i returned the two faulty boards to China. Given I have spent over days debugging and testing their poor quality parts I find this ridiculous. It will cost me more than the kit itself to package the goods, take to post office, take time off work and then send. Other reputable companies, e.g. Funtronics etc just replace goods without waiting for returns.I also cannot believe that Sainsmart do not provide circuit diagrams for any of there products making them mostly useless. As a result I am going to buy another brand proto boards and just make up the plugs and motor driver. At least I then know the circuit for future expansion.So now trying to get my money back. My advice is not to buy this kit or any products from Sainsmart as the chances they are faulty are high. I just cannot believe 2 items faulty.The customer service is a joke, I never once got any technical help from them. USELESS !! Now their support has gone totally silent on me.I really empathised with the story below that had the regulator fall off the board in the package. This sums up the quality on their products.

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