Hello Sophie,

how is it going with your project~ I am sorry for the late reply!

I am not sure what is the MOSFETs Stripboard like ? Because there is mosfet IC built-in on the shield.

But how to connect them together: 12v RGB LED strip+ the shield+an Arduino R3, I think its wiki page could help to make it.
https://www.dfrobot.com/wiki/index.php/R ... %9ADFR0274

Let me know if I could help anything.

嗨，timjanwall，@@抱歉，我之前没有检查过 CC2540 的 IIC 接口。刚才，我查看了它的数据表，似乎 CC2540 仅支持 SPI 接口，而不支持 IIC。http ://www.ti.com/lit/ds/symlink/cc2540.pdf

JiříSachl wrote:Product
HOW TO - 
1. how to set and read time using Arduino ? DS1307RTC included.
2. how to set and read time using Raspberry PI B+ ?
3. how to communicate between Arduino and Raspberry through I2C and serial way ?
4. where to get the model examples of what combination of this product with raspberry pi do ?

Thanks. I apologize for robotic language translation using Google.

Hi，

Cool job google translator have done~

I never played Rasppery before. But I could help some of them:

1 check here,I suppose you've noticed that, there's sample sketch about how to set time as well as read time https://www.dfrobot.com/wiki/index.php/Real_Time_Clock_Module_(DS1307)_V1.1_(SKU:DFR0151)

2 Read in the same way, it use the IIC interface, so the module is compatible. 

3 you'd better try some iic and serial module on arduino/ rasp.. then you could know it.

4 Well, this--this... Bad job google did. are you asking the sample sketch of this module on raspberry?( we donn't have , but the second answer would help somehow)


Good luck ! and let me know how would your project be~

http://wiringpi.com/

This May could help

Awesome, thanks for sharing! 
 

whynkay wrote:Thanks Cwlee!!

The method on http://www.rcgroups.com/forums/showthre ... 03&page=96 was worked for me Follow this link http://www.rcgroups.com/forums/showatt. ... 1312395657 to download the instructions.
Here are some informations of my environment:

1. OS: Windows 8.1 64bit

2. RF module: APC220 v3.0

3. RF-Magic version: APC22X_V12A (link: http://appcon.com.cn/en/uploads/soft/20 ... 739649.rar)

4. Silicon labs' drivers not worked for me because the chip on USB to TTL Converter is PL-2303HX. And the PL-2303HX chip also have no windows 8.1 drivers but this pdf rescued me http://www.airdevilaccessories.com.au/d ... lation.pdf

Thanks all!

Hi,

Just had a glance at the product pixy, haven't played it yet, it looks like the firmware problem, have you try to re-upload its firmware?


Official wiki & FAQ, you can talk with them their to get your problem solved asap.

For sure, but I didn't figure out which sample code you are using? 
 

Or you could visit the wiki for the newest library. https://www.dfrobot.com/wiki/index.php?t ... KU:TEL0051)#Tutorial

Hi,

Welcome! 
I only found these three IC about power regulator, but didn't find the SX3478 you mentioned, could you indicate me that with a picture?

CX1117-33
LM2596S-ADJ
GS2678

And according to the schematic, it seems there is no reverse voltage protection.

How to use a USB adapter to program an Arduino card without serial chip, like the DFRduino Pro Mini V1.3(16M5V328), DFR0159 we used here as an example?

Here i will show how to use that three USB-TTL adapters in our store, they are:
 

Xbee USB adapter (FTDI ready) DFR0050 (It is the easiest one I recomand)FTDI Basic Breakout 3.3/5V (Arduino Compatible) DFR0065 (This one is similar to DFR0164, the third one. I will only show how to use DFR0065 later)USB Serial Light Adapter - Atmega8U2 (Arduino Compatible), DFR0164

STEPS

 

Connection diagram for DFR0050

GND-GNDVcc-VccRx-TxTx-RxRST-RSTConnection diagram for DFR0065 & DFR0164

NOTE: the jumper cap should be located on 5V, choose 3.3V if yours board is 3.3V compatible.

GND - GNDVcc - VccRx - Rx, this is right, not a typo. As you could find the lable (Tx, Rx) on PCB is adversed with its PCB drawing for both DFR0065 SCH & DFR0164 SCH, some guy has suggested to change it to be consistent.Tx - TxDTR (FTDI)- Capacitor, 100nF - RST (controller), the capacitor is a MUST, and 100nF is suggested, I tested with 200nF, 20uF, also work.

After you hook them up like above, you could upload likeuploading a sketch to arduino UNO by choosing the "board", "Com Port" and cliking the Upload. here for DFRduino Pro Mini V1.3(16M5V328), DFR0159

 

Hi,

In this case, should I find a way to take the power from the power supply of the motor (probably adapting the Voltage to fit the needs of the servo)? this would be recommended by me.

And the servo should be powered by another adapter since it will draw a lot of current, it may make damage to the board (bootloader lost)

So as you mentioned the battery holder, we could take it as one power source. It could used for (arduino+DC motors), while servo should be powered by another one since the servo power_in jack is not connected with other power_in jacks, have a look at its schematic would help you understand that (besides, according to my view, most servo don't accept 9V power supply, but 4.8-6V).
...

Hi again, 

How are you doing? 

Here is our suggestion if you could read the code for that shield(Slave code for deeper development_update). Sorry that we don't have MX servo at hand, so we cannot have a try.

The idea is to modify the code in the above code as you said before accoding to the EEPROM table of MX, for example, the code at line 18&19 are matching that table content, while some others are not. (AX servo, official site)

 

Code: Select all#define P_MODEL_NUMBER_L 0
#define P_MODEL_NUMBER_H 1

And as to how to download that code, you could use a FTDI device to upload the .ino code file to the shield through the serial interface.


Note: As circled in the picture in red, you have to use a Soldering Iron to solder off the tin on the serial pins which in the circle. It seems not very clearly, actually, for example. on the pin TX, there are two holes actually, soldering off the tin will cut off the connection, then you can download successfully.

Hi Léo,

Actually, this capacitive sensor has not been done test on the response time. But I guess it should be very quick, for these days I am using this Non-contact Liquid Level Switch, same working theory, it response to the liquid level change at once.

Maybe you could test it with the code below to see how long it takes before getting stable readings.

 

Code: Select all
void setup() {
  Serial.begin(9600); // open serial port, set the baud rate as 9600 bps
}
void loop() {
  int val;
  val = analogRead(0); //connect sensor to Analog 0
  Serial.print(val); //print the value to serial port
  Serial.print( "       Time point:" );
  Serial.print(millis());
  Serial.print("\n");
}
 

Hello,
Welcome!

I am Leff, the tech support at DF, I saw this post was in 2011. At that time, we sold BT2.0 devices, but now it's BLE4.0. I am not sure which one you bought from us? Could you give me your SKU num?

And I noticed that the link led is green as you said, so it was connected as you suppose.

The next step might be very simple: If you have bought the BLE4.0 devices, you can follow the article to get familiar with it:
Bluno Beetle Simple Tutorial (With Explanatory Images)
 

unknownx86 wrote:Hi Hector,
I had the same problem. I am using the same components for an University project. I copied your code and if I am connected with USB everything works fine. But if I am connected with Bluetooth I dont get any reply. The Bluetooth Bee link led is green, so I think I am connected. I used xubuntu and remote app for it.

Which app you used to connect with Bluno?

bluno only supports app developed by DFRobot, i.e. BasicBlunoDemo, GoBle, Bluno etc. , These apps are open source that you could find the source files on Github. If you want to develope your own apps, you could build it based on our open source files.

and for pc, as well as how to connect with phone.

click the link below:
https://www.dfrobot.com/blog-283.html