DF robot product

Lynxmotion Electronics & Software
1

helo my name is khalid

yesterday my friend give a gift, to help resolve my Hexapod,
DF-Bluetooth V3

My question is, whether the same product on the product below?
sparkfun.com/products/582

whether the DF-V3 Bluetooth can connect it with the SSC-32?

such as tutorials here
lynxmotion.com/images/html/build125.htm

2

i see Tx Rx on pinouts so it should work with SSC 32 if provides COM port connection via bluetooth

but first of all you will need to setup it with AT commands
also seems to be yours have no internal 3,3V regulator so do not connect power directly to SSC

3

how to setup AT commands?
any tutorial sir?

“no internal 3,3V regulator”
u mean must have its own power supply?

sorry im newbie

thks

4

no worries, i was newbie in that too and i could say still not a magician :slight_smile:

if you’ll go trough tutorials from beginning of topic: SSC-32 provides 5V of power to BT module

yours require 3,3V so 5V is too much for it. you will need to put LM1117-3.3 chip between to make 3.3V from 5V
thats first case

BUT before you start to play with if find a manual, pdf or something for your module because i see VCC pin there too so there is a chance that it work with 5V too and 3.3v pin is an output :exclamation:

other one is BT module setup - usually it goes via com port and terminal program like hyper term or other.
AT commands will depend on core(firmware) of your BT module, usually there should be something about in manual for your BT module.
AT command itself is just a string sent from terminal to module. usually as first module should be in AT mode.
i saw dip switches on yours one seems to be responsible of putting module in AT mode

i’m using BTM 222 module so my AT’s looks like that

github.com/ssickert/Almond-Embe … T-Commands

PS
yeap at the page you provide i see datasheet at the bottom, your device accept 3.5-8V so you can connect as in the tutorial but firs connect to PC via comport (not radio, and probably you will need a TTL->RS232 converter here like max232 chip) and make base config via terminal (remember about baudrate, usually default for BT is 9600).
i see few AT commands in this documentation.

fell free to ask if have any problems

5

wow, thank you sir very clear explanation … :smiley:

there are several pinout that I do not know where to link them,
NC
GND (have 2 ground) -, - "
and 3v3
imageshack.us/f/822/sc32.jpg/

whether the correct way of connect it like the picture above? :neutral_face:
maybe with a picture of me a little more understanding :blush:

so I do not need to use the LM1117-3.3 Between chips to make 5V from 3.3V,
right?
sorry sir I am very limited English language

thanks you sir u really helped me :mrgreen:

6

no worries Khalid :slight_smile:

  1. yes you don’t need LM1117 between
  2. if both GND pins are connected together on module you do no need to connect additional wire.
    most probable reason of 2nd GND pin is - one required for power and second for RS232 transmission.
    but when you connecting BT module to SSC, RS232 GND and power GND are connected on SSC so if on BT module they also connected 1 GND wire would be enough.
    if not just connect it together and put 1 GND wire to SSC GND
  3. 3,3V pin on your BT module seems to be an output so you can power something else from BT module (something with low power consumption definitely)
    if you don’t need to power something else with 3,3v just leave it unconnected
7

haha very clear…
your very helped
many thanks sir TheZacharius
great =)

8

oh come on, welcome:)
i struggled with that a bit too