Hi, I have this A9G dev board and an Arduino Uno along with a 3.7v lithium battery. I want to connect A9G Dev board to Arduino Uno which will be powered by the lion battery. I couldn't find anything online on how to connect the dev board to Arduino. Any help is appreciated.. thanks.
Uno would not be ideal for this. It is a 5V device, vs your 3.3V dev board (EDIT: 2.8V, apparently!), so logic level shifting would be required. Uno is not breadboard compatible, unlike your dev board, making prototyping on breadboard/protoboard difficult and unreliable. Uno has only one hardware serial port which is needed for program upload and debugging, so communication with your dev board would require use of inferior software serial.
Tell us more about the project overall and perhaps we can suggest a better type of Arduino for your purpose.
Hey, so the idea is to make a gps tracker which can give me live location. I’m new to doing projects so I don’t have much experience. I also have a lithium ion battery which is 3.7v 1000mah to power the whole thing. I thought of buying the AI thinker A9G board but it was not available in my country so I bought the A9G Dev board instead. Mistakenly, I already bought the UNO and can’t change to different arduino.
But how? We humans cannot interface directly with electronics. Some kind of interface is needed.
Why not? If you needed to wash clothes but already had a dish washer, would you insist on putting your best jeans in with the saucepans?
I was thinking of using blynk app for the live location. I can’t change the uno due to time reasons. Please guide me on how to connect the board to uno if it is possible.
You would need to use a software serial library to make a new serial port using any 2 pins on the Uno that you want. You would then need to build a logic level shifter circuit to adapt the 5V Uno to the 2.8V GPS unit. For the Uno pin transmitting to the GPS Rx pin, this could be a simple voltage divider. For the Tx pin signal from the GPS, you might need to boost the 2.8V signal up to 5V. I am not sure that the Uno will be able to read a 2.8V signal. A 74HCT14 might be suitable for this.
What is your current level of experience with electronics, programming and Arduino?
Okay this is kinda complicated. How about we take out the arduino uno and only use the board? The board can work standalone (A9G) but I'm not sure about the A9G dev board. I'm pretty new to this.. so you can say zero experience.
Please help anyone. Thank you.
Unfortunately, programming the A9G chip directly is a lot more complicated than just interfacing with it via UART/AT command. It's not as popular as the UNO so most probably you will need to read up on a lot of datasheet pages to get it working...
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