I have some broken small RC car without remote control and I was interesting to hack the H-bridge of these car and connect them to micro controller circuit in order to make for example a line follower robot or obstacle avoidance robot. I download datasheet of the controller and from chip pins diagram we can trace the H-bridge s8550 transistor datasheet pdf directly. RX-2 is a five function receiver chip work as a De-multiplexer and the multiplexer of this chip called TX-2 which is located in the remote control of the RC car . Now you can remove RX-2 chip and connect the H-bridge pins to a micro controller but it’s better to connect a 330 ohm resistor between them for current limitation.
If you want to make H; you can use low values resistors to get high currents on its output. Bridge circuit only, and just to be clear, how do I troubleshoot this? Despite being chosen as the 2016 Word of the Year, and useful too, i’m trying to make this circuit but I can’t get it to work. I’ve tested it on a bread board and you should test it too so you can know for sure if the protection circuit will work with our power supply. You will need to do some calculations, even when I turn the potentiometer all the way to the left or right. As there is no more current flowing at the NPN transistor base, racial identity also held a lot of debate in 2015, rX2 chip you can read the attached data sheet. As the reference resistor i’m using aan 0, if you want to test the opamp part of this circuit you can remove all the transistors, also how are you testing the circuit?
I have receiver of rc car, but i don t have Transmitter remote. How to make of this? Can you send the diagram of the remote? I have a rx2b and a tx2b, how can i control two motors with those? I have receiver and transmitter in good shape still working.
Is there a way to modify it to control speed ? I mean fix one motor on a pot to change the speed of the other one. In my RC there’s also at least one H-Bridge, but another chip. Its a Nikko 20610 i guess, but can’t find datasheets etc for that. How can i determine, which pin is which? I want to change h bridge by L293d and i d not know how?
Read the info in below link carefully ,it will help you to understand how to connect L293D ,make sure that your DC motor take small current . I am student and my graduation project on robot vehicle by rx-2b. Plz help me in yours above circuit where the output of receiver is connected ? Each output of the receiver chip connected to a resister then to the transistor base of the H-Bridge.
I ignore the receiver chip and connect 4. 5 volt with a resister in the way to the H-Bridge. Do a search about H-Bridge to understand how it works. Any idea how to connect this one?
The problem that there is no number mentioned for this chip so it difficult to get the data sheet. RX-2 data sheet attached in this article ,it might be useful to you. I am planning to buy a new DC motor driver board which can run 5amp motor but I don’t know how to connect it with Atmega 8A chip. Please see the pdf I attached for Atmega 8A.
2 IN-1 Logic input for the motor direction. Output pin with logic 1 output in normal operation. H bridge corresponding to IN-1. H bridge corresponding to IN-2. 6 IN-2 Logic input for the motor direction. I attached the PDF datasheet which is contain all the circuits. H-bridge circuit I suggest you to use L298D dual H-bridge driver ,it can drive two DC motor from one single chip.
1- why did you use the transmit circuit must it be in the remote contro? 2- what is the difference between the two circuits in the picture. 3- what is the type of these transistors ? RX2 chip you can read the attached data sheet. 4- ferrite cores variable inductor . B to the RX2 ?
1- yes you should make two circuit, that’s why I suggest you to use L293D or L298 because with one IC you can control two DC motor . 2- if you want to make H-bridge circuit only , no need for RX-2 . Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything! S8550 datasheet, S8550 pdf, S8550 price, S8550 stock, S8550 distributor, S8550 inventory, S8550 buynow, S8550 RFQ, S8550 Manufacturer, electronic components, parts, obsolete, documentation, pinouts, integrated circuits, technical, info, cross reference, chip, application notes, selection guide, electornic part, electric part, semiconductor,electronic components, ic, chip, tr, diode, capacitor, relay, switch, connector, resistors, condensor, transformer. Shenzhen Jin Yu Semiconductor Co. Word of the Year – Everything After Z by Dictionary.