NotesFirmware
STM32 Beginner - P3: UART, I2C, and SPI with HAL
Learn the three common STM32 interfaces: use UART for debugging, I2C for sensors, and SPI for displays or memory with STM32CubeIDE and HAL.
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Beginner Guide
Everything tagged “Beginner Guide” across notes, resources, and Mochi logs.
NotesFirmware
STM32 Beginner - Part 5: Building a Complete Application
Combine timer, ADC, DMA, PWM, I2C, and UART into a small STM32 bench monitor with a clear firmware architecture, fault handling, and room to grow into a real project.
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NotesFirmware
STM32 Beginner Guide P2: GPIO, Interrupts, and Timers from the First Example
Learn to configure GPIO, capture a button event with an EXTI interrupt, and create a periodic time base with a timer on STM32CubeIDE using a NUCLEO-G071RB board.
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NotesFirmware
STM32 Beginner Guide P4: ADC, PWM, and DMA from Analog to Continuous Data
Learn to read analog signals with ADC, control LED brightness with PWM, and transfer multiple samples through DMA on STM32CubeIDE using HAL.
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NotesFirmware
STM32 Beginner Guide P1: What Is STM32 and Which Board Should You Choose?
Learn what STM32 is, distinguish chips, modules, and development boards, then choose a practical board for learning GPIO, HAL, STM32CubeIDE, and embedded firmware from the beginning.
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NotesFirmware
ESP32 Beginner Guide – P5: Wi-Fi and Web Server
Connect ESP32 to Wi-Fi, find its IP address, and build a local web server that displays BME280 temperature, humidity, and pressure in a browser.
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NotesFirmware
ESP32 Beginner Guide – P6: Bluetooth Low Energy
Learn ESP32 BLE, GATT services, and characteristics by sending BME280 readings to a phone with Read and Notify.
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ESP32 Beginner Guide – P7: Build a Complete ESP32 Project
Finish the series with a Room Comfort Monitor: ESP32 reads a BME280, controls a warning LED and serves a local Wi-Fi dashboard.
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NotesFirmware
ESP32 Beginner Guide – P4: Connecting Sensors
Connect digital, analog, and I2C sensors to ESP32; read temperature, humidity, and pressure from a BME280 and diagnose devices that are not detected.
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NotesFirmware
ESP32 Beginner Guide – P3: Pinout and GPIO
Read an ESP32 pinout, choose GPIO for input and output, use pull-ups, wire an LED and button, and avoid boot, flash, PSRAM, and unsafe 5 V signals.
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NotesFirmware
ESP32 IoT Project Roadmap: From LED to Production
An interactive ESP32 project roadmap from LEDs and buttons through connected sensors and edge ML to production OTA and security, with practical guides at each level.
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NotesHardware
ESP32 Beginner Guide – P1: What Is ESP32 and Choose ESP32
Learn the difference between ESP32 chips, modules, and development boards, then choose an ESP32-C3, ESP32-S3, or classic ESP32 board without buying hardware you do not need.
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NotesFirmware
ESP32 Beginner Guide – P2: Setup and Upload Your First Sketch
Install Arduino IDE and Arduino-ESP32, select the correct board and port, upload your first sketch, and fix Failed to connect errors on ESP32, ESP32-C3, and ESP32-S3.
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