Download Firmware Code for the First Time
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Last update: 17-08-2024
The most recent hardware revision has a built-in USB-C port, and this means it is not necessary for a USB to UART adapter. One still needs to install the device drivers first!
To do firmware download, a USB to UART TTL device. There's a purposely designed firmware burner on this repository. This device is able to do firmware download on any MCUs running at 3.0V or 5.0V. Features voltage selection: 3.0V 250mA/500mA or 5.0V 500mA and automatic reset and automatic boot. It can fit an enclosure with dimensions of 35x35x4 mm. Other devices are available and are compatible with the Smart DAQ.
if the reader opts for any of the ones above (or another), make sure the programmer has RTS and DTS lines. Another requirement is the Firmware connector clip. This clip has the dimensions of a SOIC 8. One can buy one on AliExpress (below) or elsewhere:
The most recent hardware revision has a built-in USB-C port, and this means it is not necessary for a USB to UART adapter. One still needs to install the device drivers first!
This firmware programmer connects via USB-A to any USB port available on a computer. The connector clip is to be connected to the smart DAQ PCB where is available a 8 PIN: 4 on the top and 4 on the bottom of the PCB. A silkscreen marking indicates the 3V3 Pin. See the clamp pinout below.
TX RX GND 5V0 TOP
4 3 2 1
RST DTR - 3V3 Bottom
5 6 7 8
See the video below showing a firmware download with the programmer available here on GitHub
In order for the firmware programmer to be detected on Windows, installation of the corresponding chip IC driver. For chip ICs based on the CH340x has been tested on:
- Windows 7/10
- Mac OSX
- v10.10.5 (Yosemite)
- v10.11.6 (El Capitan)
- v10.13.0 (High Sierra)
- v10.14.5 (Mojave)
- Linux
- Raspbian Stretch (11-13-2018 release) for the Raspberry Pi
- Raspbian Buster (2019-07-10 release) for the Raspberry Pi
- Ubuntu v18.04.2, 64-bit
These operating systems have the CDC drivers pre-installed, which means you shouldn't need to install any extra software.
- Windows (EXE) -- Driver executable
- Windows (ZIP) : Driver v3.4 (2016-09-27)
- Mac (ZIP) : Driver v1.5 (2018-07-04)
- Linux (ZIP) : Driver v1.5 (2018-03-18)
The CH340 is made by WCH. You can find the latest version of their drivers on their English-translated website.
The firmware code available can be opened on the following software studios
- Arduino Studio
- Visual Code
- Platform IO
There are a plethora of tutorials on Google on how to do firmware downloads for each of the studios above.
If you have any questions join the free Discord Server for a quicker response
There are useful answers on Stack Exchange about this topic I recommend reading. One is ESP-WROOM-32 layout USB-UART and ESP32 with FTDI programmer
Alternatively, and if you do not want to build a PCB by yourself, you can buy here:
🟢 Fully tested and working
A green circle means the hardware electronics or the programming code was fully tested, each of its functionalities and capabilities. And it can be installed in a vehicle. Keep in mind this does not mean errors won't happen. As in everything related to electronics and software, there are revisions and updates. This open hardware is no different.
💯 Fully tested & working, no improvements necessary - already being sold online
🆓 Fully Open hardware \ source code
🤪 There's better than this. don't use it
🔐 Fully closed hardware \ source code
⚡️ fully tested and working, however, it is a dangerous solution to deploy
🟡 Not tested. Working capability is unknown, it may work or not.
A yellow circle means the hardware electronics or the programming code was not fully tested, each of its functionalities and capabilities. This does not mean it not working, it simply means testing is needed before giving a green circle of approval.
🔴 Fully tested but not working.
A red circle means the hardware electronics or the programming code was fully tested, and found some kind of critical error or fault. This means the electronics or firmware code cannot be used in a vehicle.
⌛ Not started.
The hourglass means the hardware electronics or the programming hasn't started. Most likely because is waiting for the necessary test components needed for reverse engineering and also engineering of the new open solution.
🆕 New updated contents
The new icon means the link next to it was recently updated with new contents
💬 Comments on the Discussion page
The comments icon means there are useful and even new comments on the discussions page of the repository important for what you are seeing or reading.
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