![]() ![]() It does not have precise steering control.Instead, there are only discrete turning options: left, straight, orright. The car is rear-wheel drive, with a single smallmotor to drive it. This simplifies the charge circuitry, and allows the cars to becharged quickly. In the imagebelow, you can see that the RC car actually does not have a batteryitself, but rather uses a supercapacitor, mounted in a cutout of thePCB. ![]() These cars arecharged from the controller, which uses AA batteries. It is interestinglooking into the design of such a low cost device (whole thing for$8.) Partly in support ofanother project I am thinking of starting, which would involvereplacing the electronics with my own, I did a teardown of a micro RCcar. The below image, from the FCC filing, shows that the rear of the PCB is not really used, except for the through hole right-angle power switch. By looking up the controllercode (2AJKH-PKRACERC), I could find images of the PCBs inside, as well as aconfirmation that the radio system operates at 2.4GHz. Another useful toolfor teardowns is the FCC ID lookup tool. Thankfully, there is a way to get pictures of the rear of the PCB. There is a component near the charge wire that may be a voltage regulator used for CV charging of the NiMH cell?īecause of the battery holder connections in the above photo, the PCB is held into the case and cannot easily be removed to see the back of the PCB. The charging wire is soldered to the board, and runs through the board with some hot glue for strain relief. The two on the left are forward/reverse, and on the right are for steering. The crystal is packaged into a cutout of the PCB, lowering the profile of the setup so it fits in the case cleanly. A number of components carry over from the car's PCB: the rw1601h and crystal and antenna. The below imageshows the top of the controller PCB. I also previously said the system is charged from a AA battery, but actually the controller uses2 AAA alkaline batteries. I'm not very familiar with NiMH cells, but maybe someone else can chime in if such a setup is reasonable for a low cost device. Or, since this device is so cheap and not expected to last long, possibly they are just doing some CV charging of the cell. Thatsaid, the car charges from the controller, and the chargingelectronics could be there. However, I did not see any charging electronics on thecar’s PCB, which made me think it might be a supercapacitor insteadof a battery, since they can be charged in a much simpler way. In addition, the car can run for quite some time beforeneeding a recharge, and a supercapacitor likely does not have enoughcapacity. Asupercapacitor discharges in a way that the voltage will dropsignificantly before the energy is depleted, and I did not notice asignificant slowdown in driving speed until the car is mostlydischarged. On the whole, both games will work on practically anything including notebooks and laptops.It was brought upin the comments that what I recognized as a supercapacitor is likely a 1/3 AA sizeNiMH battery cell. The experience points can be earned by playing various events across the map as well as buying new cars and discovering the islands. Your progress is done by earning experience points to level up, there are 60 levels to claim. The game takes place on two main island Ibiza and Oahu giving the player a huge map to explore, there is over 100 car to unlock varying from sports cars to SUVs and more. You start the game as a driver working for Tess Wintory, while driving her to a certain location she was surprised by the player’s skills giving him a chance to participate in a big racing championship taking place at various locations on the island. Test Drive Unlimited 2 is an open-world racing game and the nineteenth entry in the Test Drive series. The game offers the whole map of Oahu to discover including free roams, participating in many events across the island (tournaments, single races, time trials, speed trials, etc.), and a huge arsenal of licensed cars to unlock and buy. Test Drive Unlimited is an open-world racing game.
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