Forum >Replies by techsupport
Replies （20）
- Topic: RPLidar A1M8You Reply: Hi Greg, please just open the "frame_grabber.exe" in the "win 32" file. My computer is also 64-bit, but I can use the RPLidar with the software, and read the data. If it still doesn't work, please send a screenshot of the software to [email protected]
- You Reply: Did you just use the drive to control the forward and reverse of the motor? No encoder is connected. The motor is working? Or the trouble just with the encoder?
(The sample code in the driver board wiki can be used directly, the way the motor is connected: motor power and hall sensor power.) - You Reply: You can replace the external battery pack according to the power supply you need.
- You Reply:Code: Select allPlease ensure that the jumper on the board is shorted (supports PWM control mode.) and the motor is normal.
int E1 = 5; int E2 = 6; int M1 = 4; int M2 = 7; void setup() { int i; for(i=4;i<=7;i++) pinMode(i, OUTPUT); Serial.begin(19200); //设置串口波特率 } void loop() { analogWrite (E1,100); digitalWrite(M1,HIGH); Serial.println("555"); analogWrite (E2,100); digitalWrite(M2,HIGH); Serial.println("666"); }
Please use this code, if it still can't work, contact us at [email protected] to replace. - You Reply: The picture shows the addition of an acrylic platform to install the Raspberry Pi.
The battery is installed in the bottom plate.You can refer to this link to install the battery.
https://github.com/NanaWangDFR/DFPlayer ... errypi.jpg - Topic: ROMEO AND VIRTUALWIREYou Reply: Hi~ I feel a little confuse about it, could you share your connetion picture and the link of RF module with us to confirm? Or you can refer to this link to test?https://www.pjrc.com/teensy/td_libs_VirtualWire.html
- You Reply: It sounds like you are looking for a high-precision range finder module. We have tested the laser range finder of VL53L1X before. If it is well calibrated, it can reach an accuracy of 1mm. Or you can try this: https://www.dfrobot.com/product-1706.html? Search = SEN0245
- You Reply: Hi, we are sorry that we cannot provide this, because it is not open source.
- You Reply: I have already mailed you, please check.
- You Reply: Hi, could you give me your email address, I can't send the picture to this web-sit...
I think the promblem is the sequence of the pin... - You Reply: In fact, we don't provide specific sizes for our users, but I think this project is great, please let me know your email address.
We will feel very pleasure if you are willing to share this project in our forum, can we? - Topic: DF Player Mini OverheatingYou Reply: Hi, could you just test the basic functions of module?
According to "GetStarted" on wiki, can you play a song?
In fact, I am not quite sure. Could you take a video of the complete use and send it to me?
[email protected] - You Reply: For this graph, I don't think it's working properly, the data doesn't look right. Is there calibration before use?
- You Reply: Like this:
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 3); // RX, TX
void setup()
{
Serial.begin(115200);
while (!Serial) {
}
Serial.println("Goodnight moon!");
mySerial.begin(9600);
mySerial.println("Hello, world?");
}
void loop()
{
if (mySerial.available())
Serial.write(mySerial.read());
if (Serial.available())
mySerial.write(Serial.read());
} - You Reply: Cause the downloader did not recognize the CC2540: not soldered or wired incorrectly.
You can give me the picture about these two parts, I will check it. - You Reply: Would you like to customize this board? If yes, you can get from this link: https://www.dfrobot.com/index.php?route=product/pcb
- You Reply: It maybe more convincing when compared with professional Oxygen Sensor……
- You Reply: Huawei bluetooth compatibility may be a problem, please try other phones.
- Topic: IO Shield V7.1You Reply: Did you have the link of Xbee Pro WiFi? There is no problem, if the pins are compatible.
- You Reply: Could I understand uploading code to the arduino board remotely? If like this, maybe need a serial port that virtualizes (like TCP server VSPM virtual serial port server) to make it.
