This article describes Queue Data Structures previously written in the Python Queue Data Structure article and is frequently used with the MicroPython example, but this article is written in C via Arduino IDE to use with microcontroller board LGT8F328P, SAM-D21, ESP8266, ESP32 and ESP32-S2 as shown in Figure 1 by using an example of the array structure and a single link list as a queued data structure. This article is probably the last article on JarutEx.
This article describes a stack data structure to write programs in C on various platforms using a single linked list data structure as a stack data store with examples of the array as storage and test the operation with the microcontroller board LGT8F328P, SAM-D21, ESP8266, ESP32 and ESP32-S2 as shown in Figures 1 and 2. In case of wanting to use with other platforms, you can still modify the code for use such as the same.
This article describes the use of the ST7735s module with the ESP32-S2 microcontroller via the TFT_eSPI library. We have previously discussed its implementation with the ESP32 and STM32F103C microcontrollers, and the chosen TFT module as REDTAB80x160 (added code for GREENTAB80x160 at the end of the article), but you can adjust the settings to other modules, see the User_Setup.h file of the TFT_eSPI library as shown in Figure 1.
From the article Singly Linked List Data Structures, the use of the DHT11 sensor module with the STM32F103 microcontroller, and the use of the TFT display module based on the st7735s controller, the idea of this article is to take an example of using a singly linked list data structure to collect the temperature and humidity values to find the maximum, minimum, average, together with the data in the list to display in the form of a graph as shown in Figure 1.
This article is about programming C/C++ with Arduino Nano, Arduino Uno, LGT8F328P or other boards with C-capable platforms. A pointer is used to point to a memory address and memory management methods, including memory reservation memory access and deactivating the use of memory to create a method for storing data in a Single Linked List along with an example program used to store a list of temperature and humidity values from the DHT11 module as shown in Figure 1.
This article applies the ESP32 microcontroller’s DAC and MicroPython to open WAV files, which are audio recording files and exported to the DAC connected to the speakers as shown in Figure 1. The used file is an uncompressed 8-bit mono PCM audio file. And the sample program supports a sampling rate at about 50KHz or at 44100 level.
This article discusses the use of PWM (Pulse Width Modulate) of the ESP32 microcontroller in the Arduino framework after discussing the functionality of this section in the ESP-IDF and MicroPython by connecting the board to the speaker as shown in Figure 1.
This article is an example of using nathalis‘s ESP32 Soft Host to try and test it on an OLED display with a resolution of 128×64 dots as shown in Figure 1 to receive data from a keyboard or mouse, it uses only a few GPIO pins but receives data from a keyboard with a large number of keys. Normally, the ESP32 microcontroller does not support a direct USB connection, so it requires programming by using a timer to check the status of the pins D- and D+ to be assembled into data at the byte level and assembled into packs of data for further interpretation.
This article introduces the ESP32 and SAM-D21 microcontroller board to learn how to use ADC (Analog to Digital Converter) and DAC (Digital to Analog Converter) instruction by connecting the DAC pin to ADC as shown in Figures 1 (Connect A0 to A1 of Board SAM-D21 ) and 2 (Connect Pin GPIO26 to GPIO36 of ESP32) to send data to DAC and have ADC read it back. Then send the results out to the serial port for display with the Serial Plotter, which is an example program to send 3 types of data, which is a zigzag graph, triangular graph and waveform graph from the sinusoidal function
From the article on how to use u8g2 that can render Thai string through the drawUTF8() function of the u8g2 library, the rendering is not correct as shown in Figure 1, therefore, the code of libraries needs additionally adjusted to render correctly as in Figure 2.
