USB TO TTL EMULATOR SOFTWARE FOR MAC HOW TO
USB TO TTL EMULATOR SOFTWARE FOR MAC ANDROID
USB TO TTL EMULATOR SOFTWARE FOR MAC CODE
USB TO TTL EMULATOR SOFTWARE FOR MAC PC
USB TO TTL EMULATOR SOFTWARE FOR MAC BLUETOOTH

Coach manufacturers are an independent lot, so check your coach's documentation. If you are not in a rush, you can order the same item from a China source for dollar or so cheaper. This is from a US supplier, so it comes in a week or less.

USB TO TTL EMULATOR SOFTWARE FOR MAC BLUETOOTH

Here is the one I used: HC-06 Bluetooth Module from eBay. I found out the hard way that 12v is too much and will destroy the on-board regulator. While the HC-06 has an on-board voltage regulator, it is limited to a maximum of 6 volts. When you connect the HC-06 to the rest of the circuit, make sure you connect it to the 5v supply not the 12v battery supply. HC-06 instructions can be found here: HC-Serial-Bluetooth-Products.pdf You cannot program the HC-06 through the Bluetooth connection. Two requirements must be met - the command must be sent as all caps, and the HC-06 must not be paired with any device (this was the tricky part that took me while to figure out). The HC-06 responds with 'OK' to indicate the Baud rate was changed successfully. Using a simple console emulator program, such as Termite, and the USB to TTL cable connected to the HC-06, you issue the command 'AT+BAUD7'. I used a USB to TTL interface cable I bought from here: USB to TTL Adapter. Changing the HC-06 Baud rate is simple if you have the necessary tool. The HC-06 comes set to a default of 9600 Baud, while the ELM325 only communicates at 57600 Baud. The only trickly part of constructing the circuit was getting the HC-06 configured to the proper Baud rate. I modified the circuit to use a Bluetooth module for the computer connection. In addition to describing the chip and its programming in detail, the datasheet provides example circuit schematics for USB and RS232 computer connections. The datasheet for the ELM325 can be downloaded here: ELM325 Datasheet.pdf You purchase the ELM325 directly from ELM Electronics. The ELM signal output is normal TTL so you can connect to it using USB, RS232, or a Bluetooth module. You can easily monitor the bus to view all the traffic, or you can request specific parameters from any device connected to the J1587 bus.

Based on your command, the ELM properly formats a J1587 message and places it on to the bus, receives the J1587 response, reformats it, and sends it to your computer. You 'talk' to the ELM using 'AT' commands similar to those used to communicate with modems. The ELM325 takes care of all the formatting for both incoming and outgoing messages.

USB TO TTL EMULATOR SOFTWARE FOR MAC CODE

While such a basic interface is simple and cheap to build, it requires writing a significant amount of code to interpret the data stream into J1587 messages.ДЄ much simpler solution is to connect an ELM325 J1587 interpreter chip to the output of the DS485. The bus can be connected to a computer with a few resistors, capacitors and an RS-485 to TTL converter chip such as the DS485. The J1587 bus technology uses RS-485 transceivers to communicate over a twisted pair of wires.

USB TO TTL EMULATOR SOFTWARE FOR MAC HOW TO

You will need this as it provides all the MID's and PID's values, and describes how to interpret the data bytes. It would be a simple task to modify the Java code here for use with J1939.ДЄ detailed reference for J1587 can be downloaded from here: J1587 Reference Document. Already built ones are available for $50 or so. J1939 coaches are easier to deal with as you do not have to build an interface.

I do not know the date when coaches may have changed to J1939. There are two data link technologies used in medium and heavy vehicles - J1587 and J1939. The scope of this article is limited to a J1708/J1587 data link interface (hereafter referred to as J1587). What follows is a detailed description of how to build the J1587 Bluetooth interface and program the Java app. As this is a 'work in progress', I have not included any of the project files.

USB TO TTL EMULATOR SOFTWARE FOR MAC PC

The PC app is written in Visual Basic using the free Visual Studio 2013 IDE. Here is a photo of the display from this project on my Nexus 7 tablet.

USB TO TTL EMULATOR SOFTWARE FOR MAC ANDROID

While you can read the raw transmitted data using any free terminal emulator program, a simple Android Java app can reformat the raw data into normal values and display it nicely on a tablet. However, for less than $50 you can build an interface module to transmit engine, transmission, and other data to any Bluetooth device such as a tablet or PC. A more reasonable priced package is available from Silverleaf, but it still costs several hundred dollars. Most commercial software/interface packages cost a thousand dollars or more. Most are free and the interface units are dirt cheap.ДЇor those of us wanting to view similar information from medium and heavy duty vehicles, such as our motor homes, there are no similar inexpensive solutions. Not only can you view normal data such as speed and rpm, these apps provide views of additional data and recording of data. With the advent of Android and iPad tablets, there have been a number of data display apps for passenger cars.

Usb to ttl emulator software for mac