Forum >Replies by sartbaug
Replies （11）
- Topic: BT Module V3 ConnectionYou Reply: I'm currently having issues getting them connected to any Bluetooth device. I have two of them and neither will show up when I search for Bluetooth. You said it could be because they are set to master, but shouldn't they come set to slave. I don't remember doing any AT commands on the first one and I know I didn't change the settings on the second one because I just opened it. I'm assuming these devices just receive serial data from an arduino and broadcast that over BT, so it should be programmed for broadcasting its MAC address already correct?
- Topic: BT Module V3 ConnectionYou Reply: Hi Leff,
I understand different versions of Bleutooth aren't compatible. If it adds some clarity, the project I'm working on is to send commands wirelessly to a CAN bus. I've had a BT to CAN device for awhile now that already runs BT2.0. My work with the Blunos was as a possible upgrade from BT2.0 to BLE where I would connect the slave Bluno to CAN. With this BT V3 Module, I was hoping to use the existing BT to CAN device I already have. I've been busy recently so i haven't gotten back to this project, but hopefully I can resume now. Have you worked with these BT V3 modules. I thought it should show up as a Bluetooth device on an older smartphone or older laptop (both shouldn't have BLE), but I haven't seen it on either. I've pulled up the BT to CAN device I have on both of them (so I know they can find BT2.0), but haven't seen the V3 module. - Topic: BT Module V3 ConnectionYou Reply: Yes that's the device. I've been trying to connect it as a Master to another peripheral that requires a password "0000". If I use this AT command will it set the sent password or the internal password? I read somewhere about these modules having a "1234" internal password. I want to program it to send the pair code "0000" of my other device to the other device so that they will pair properly. I have a new question as well. Should my phone be able to find this device out of the box if I power it up? I can't get either of my phones to find this device and I used an old smartphone and a new one. I am powering the device through the an Arduino Nano that's USB connected to my computer if that makes a difference.
- Topic: BT Module V3 ConnectionYou Reply: I was speaking more specifically about the Bluetooth module that supports Bluetooth version 2.0 with EDR. I was hoping to set it as a Master and connect it to a Bluetooth peripheral I currently have running BT version 2.0. However it requires a passkey "0000". I can change the passkey, but I can't turn it off. Can I set this module to send that pair code to the peripheral. I will attempt to set up the AT commands to set the module as Master and Bind it to the peripheral's MAC.
- Topic: BT Module V3 ConnectionYou Reply: I have quite a few questions about this device. Firstly, can you program this device to send a PIN code so that it can authenticate with another Bluetooth peripheral? The peripheral I have, has a typical "0000" PIN code that is needed to connect with the device. Next question, can you give this device AT commands without using the USB adapter, perhaps in an Arduino sketch itself? I heard with other devices that you could do AT commands in a sketch but that it was harder to do. I currently only have the V3 Module and an Arduino Nano. Which brings me to my last question, how exactly do I need to connect the tx and rx pins to each device? With most tx and rx I'm told you flip them i.e. (tx nano >> rx BT & rx nano >> tx BT). But I was also told connecting the tx and rx pins to something from an Arduino can cause issues with uploading sketches.
- Topic: Bluno to BlunoYou Reply: Thanks, I think I finally got it. I did "uint8_t" instead on both sides to create byte information for my three LEDs. Everything seems to be functioning as I would like it to, now. Now I just have to change the code to send char to CAN.
- Topic: Bluno to BlunoYou Reply: I would say I'm just trying to send commands. When I push a button on one Bluno, I want the other one to read the button press and turn on an LED or send a message. I seem to have the devices up and running now. I have three buttons connected to the Master Bluno that activate three different LEDs on the Slave Bluno. My issue was with the Serial.write and Serial.read commands in Arduino IDE and my confusion about the Link LED.
- Topic: Bluno to BlunoYou Reply: As a follow up, I apparently have a bad Link LED on the Central Bluno. It's reading 3.3V across it currently, but the LED isn't on. So both of their Link LEDs should be on. When I press the button on Central Bluno to send the message, the Central Bluno's RX LED flashes and the Peripheral Bluno's TX LED flashes. This seems backwards to me, but I don't know what I'm doing wrong.
- Topic: Bluno to BlunoYou Reply: Yes, I followed that guide. After I updated those and tried to run a program the one I set to peripheral had the Link LED on, but not the Bluno set to Central. I'm not sure if that is how it's supposed to appear or not, but when I try to send the blink command wirelessly with a button connected to the Central Bluno. The RX light blinks once on the Central device and the Peripheral device does nothing.
- Topic: Bluetooth Adapter ComparisonYou Reply: If they don't work with the Bluno Nano, I have an Arduino Nano that I could use instead.
- Topic: Bluetooth Adapter ComparisonYou Reply: So if I wire one of these devices to a bluno it won't allow me to control a different device running Bluetooth V2.0?