A multi-functional application card based on esp32, which supports clock weather, fan counter, alarm clock, countdown, games, e-books, pictures, videos, news, stocks, offline mode and other functions.
Hardware part and program burning:
1. The pcb and circuit diagram can be directly seen in the open source project, and the Gerber file in the attachment can be directly printed on the board.
1. Requirements for pcb boarding, board thickness 1.6mm, no other requirements
Second, the purchase of components
1. For esp32, pay attention to buy the version of esp32 wrover-E-16M, pay attention not to wroom, the packages of the two are completely different.
2. Pay attention to the height of the buzzer, the maximum height limit is 5-6mm (depending on the shell), too high a buzzer cannot fit the shell.
Three, 3d shell
The front panel should be light-cured as much as possible, and the rear panel does not need a 1mm fixing hole, you can choose other methods
The back cover provides 2 styles, the difference is only 1mm in thickness, the other remains unchanged, and the buttons are also similar with 2 different thicknesses
Fourth, welding
1. Try not to protrude the photoresistor and typec, which is the biggest difference from appcardv2, otherwise the shell will not fit easily.
2. The redundant pins of the buzzer need to be cut off
3. The battery holder does not need to be welded, it is for positioning, just weld the battery leads directly.
4. Heating table is recommended for the whole welding method