ESP32 IOT Control
IOT Control let you turn on/off devices wirelessly. Using ESP32 for MCU
Category: Arduino
PWM Controlled
Take control the PWM duty cycle using arduino
External DAC vs Internal DAC
This is my experiment with DAC. First i am using external DAC. I am using PCF8591 I2C using STM32F103 and arduino framework. The result is terrible. It just got 10Hz with 100 resolutions. Unfortunately, i don’t have SPI DAC so …
L293D VS A4988 Stepper Motor Driver Comparison
The L293D motor driver can be use for stepper motor driver, but i wouldn’t recommend. First, it’s only draw maximum 600mA. Second, it doesn’t have current limiter. Here is L293D using AccelStepper library: Here’s using A4988 using same AccelStepper library. …
Climate Control System
Climate Control System for controlling room/cage. With temperature and humidity sensor and has 7 output for controlling fan, heater, cooling and alarm. With simple menu and easy to use.
Real-Time Youtube Subscriber Count
Another simple project to make more my daughter motivation. Using led matrix 4x MAX7219 and ESP32, it’s connect to youtube API and Alexa so we can turn on and turn off the display via Alexa command.
Home Assistant Switch Plate
Based on HA Switch Plate, using Nextion HMI and ESP MCU. All controls can be customized via Home Assistant control panel. Finally, enclose it with 3D printed case to make it nicely.
Convert Smart Wall Switch to ESPHome
Not all smart wall switch can be convert to ESPHome easily. SONOFF smart switch, you can convert it relatively easy since it has flash pin already on the PCB. I bought BARDI smart wall switch and unfortunately it doesn’t has …
DIY Smart Perfume Dispenser
Tired to turn on and turn off Perfume Dispenser to save the perfume? Here is the solution. I modified it using ESP8266 and mosfet to control the motor. Flashing it using ESPhome and connected to HomeAssistant.
Queue Caller
I made Queue Caller prototype using Nextion LCD and ESP8266. It’s simply just send next, recall and call specific queue. Easy to move anywhere since it’s wireless and use USB charger for powering it.