We dont really know much on how to connect or code anything but what im worrying right now is if one singke arduino can handle a lot of sensors and what it would look like in real life
This is what it will look like and i think we can handle that much but eventually we'll be adding some humidity sensor, soil moisture sensor(im not even sure what it would look like on a robot car), gps to track it while we control it, and a lot lot more which we havent discussed yet since theyre studying abt other sensors to add. This is a farming robot and we want to add more sensors for innovation so if anyone out there knows how to connect each component and wires and make a model(?), drawing(?) or idk illustration which shows the wiring and components, I woukd really appreciate it
First, the motors need a 12 V battery. If you add more sensors you will need a board with more pins. Either a big board like a Mega2560 or an esp32.
When you start to build, just do one motor, then two, then 4, then start adding sensors.
you show an Android app controlling the farming robot using Bluetooth
Bluetooth has a very limited range so is probably not suitable
consider use something with a longer range, e.g. a HC-12 or LoRa P2P
for the remote controller you could then use something such as a ESP32-Cheap-Yellow-Display
If you want or need more pins on an Arduino you can also add a port expander chip like the MCP23S17 (spi interface) or the MCP23O17 (I2C interface).
You also might struggle with the Bluetooth as the HC05 will produce the old type of Bluetooth. Where as the Android App might produce Bluetooth Low Energy (BLE) signals which are not compatible with the old HC-05 sort of Bluetooth.
See this link on BLE BLE wikipedia
This can be linked from the general article outlining all the Bluetooth versions:- Bluetooth
Note this link is at Bluetooth 4.0 section of this page.
Solar is used to charge a battery. Several reasons for that. Some days it rains or is cloudy, so no or not enough solar. There is NO solar at night, and solar planners use 4 to 6 hours of daylight solar, depending on your latitude and the time of year. Where I live, the sun barely clears the horizon for a good month.
The bottom line is that you need a lot more peak solar power, which, if it isn't stored in a battery, is wasted as heat.
What really surprises most people is that the sun rises in the NORTH around mid summer at northern latitudes even as far south as 46.4 degrees.
If you go the rechargeable route, make sure to check the battery performance vs non-rechargeable. Generally speaking, rechargeable batteries contain much less power per cc or gm.
