【AT-START-F403A Review】+Continuous progress towards perfection
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This post was last edited by w494143467 on 2020-10-19 11:00
During the evaluation process of the AT32F403A development board, even though it is a process of constant exploration and knowledge seeking, it is also a process of constant pursuit of perfection.
The temperature detection starts from the routine, which collects the built-in temperature sensor and its channel through A/D, and then converts it into decimal number and outputs it through the serial port, as shown in Figure 1.
Figure 1 shows the temperature inside the chip
Later, in order to facilitate reading, the display was changed to direct OLED screen based on driving the monochrome OLED screen.
But the original OLED screen was hung outside and lacked a sense of integrity, as shown in Figure 2.
So we used the Arduino interface to build a home for it, as shown in Figure 3. At the same time, we also upgraded the temperature detection inside the chip to the temperature and humidity detection of the environment, because you can't always let us drill into the chip to measure the temperature.
Figure 2 Plug-in driver
Figure 3 Arduino interface driver
The monochrome world is too monotonous, so it was upgraded to a two-color screen, as shown in Figure 4.
Figure 4 Two-color screen is coming
The AT32F403A development board has great storage potential, so let's make full use of it, store the picture data into an array, and pair it with a color OLED screen to see if it looks good!
Figure 5 Color screen also appears
If you think the 0.96-inch screen is too small, we can change to a bigger 2.2-inch TFT screen, as shown in Figure 6.
Figure 6 TFT screen is not far behind
The question is, how did you get back to the free state?
It’s not that I don’t want to, but the development board just doesn’t do it!
With the foundation of the plug-in driver, I crawled forward one leg at a time, and finally found that anyone could do it, except PA15!
What to do?
Please refer to the picture above, as shown in Figure 7. PA15 is connected to the Arduino interface through a short circuit. If it is replaced with PB6 E, hum...
Don't rush, just try it out by flying the line first, it should be OK!
Figure 7 Arduino interface
Just replace the short-circuit resistor to R35 and you're done, as shown in Figure 8.
Hey, I'm tired of going through all this trouble. If you still complain that the screen is too small, wait, let me make money first!
Figure 8 Return to Arduino
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