Visual block-based IDE for ESP32 — drag, connect, and deploy IoT projects with Arduino C++ and MicroPython code generation.
From drag-and-drop blocks to live hardware upload — a complete embedded development workflow in your browser.
150+ intuitive blocks for sensors, actuators, displays, motors, and logic. Snap them together like LEGO to build complex programs.
Instantly generate production-ready Arduino C++ or MicroPython code. Switch between languages with a single click.
Compile and flash directly to your ESP32 via USB — no Arduino IDE needed. Built-in error detection and library management.
Built-in serial console with high-speed buffering. See sensor values, debug output, and system messages live at 115200 baud.
Built-in blocks for Blynk IoT, ThingSpeak, and MQTT. Push sensor data to the cloud with zero networking knowledge.
Full Scratch-compatible visual programming with sprite animation, motion, looks, sound, and event blocks for learning.
Build once with blocks, export to Arduino C++ or MicroPython. Both generators produce clean, commented, production-ready code.
Every block generates optimized, human-readable code with proper includes, pin initialization, and loop structure. Code you'd be proud to ship.
// Auto-generated by TechyGuide #include <DHT.h> #include <BlynkSimpleEsp32.h> #define DHTPIN 4 DHT dht(DHTPIN, DHT11); BlynkTimer timer; void sendSensor() { float t = dht.readTemperature(); float h = dht.readHumidity(); Blynk.virtualWrite(V0, t); Blynk.virtualWrite(V1, h); } void setup() { Serial.begin(115200); Blynk.begin("auth", "ssid", "pass"); dht.begin(); timer.setInterval(2000L, sendSensor); } void loop() { Blynk.run(); timer.run(); }
Comprehensive block support for the most popular sensors, actuators, displays, and communication modules.
Push sensor data to the cloud with drag-and-drop blocks. Monitor your devices from anywhere in the world.
Full Blynk integration with virtual pins, push notifications, LCD widgets, and timed data reporting.
Publish sensor data to ThingSpeak channels for analytics, graphing, and MATLAB integration.
Full MQTT client with publish, subscribe, and real-time messaging for any broker.
Switch between ESP32 hardware programming and Scratch-style animation — all in the same editor.
Full-featured embedded programming with 150+ hardware blocks, dual code generation, and one-click upload.
Classic Scratch-compatible visual programming with sprite animation, stage rendering, and event-driven logic.
Three steps. Zero boilerplate. No setup required.
Choose from 8 block categories — sensors, actuators, displays, motors, IoT, and more. Snap blocks together to define your program logic with zero syntax errors.
Hit the code button and watch your blocks transform into clean Arduino C++ or MicroPython. The generator handles includes, pin setup, loop structure, and timing.
Connect your ESP32 via USB, select the port, and click Upload. The serial monitor shows live sensor data and debug output in real-time.
Industry-standard tools and frameworks under the hood.
Everything you need to know to get started.
Any ESP32 development board (ESP32-WROOM, ESP32-S3, NodeMCU-32S, etc.) connected via USB. The platform auto-detects connected boards.
No! TechyGuide includes a built-in Arduino CLI backend. It automatically downloads board packages, manages libraries, and compiles code — all from the browser.
30+ sensors including DHT11/22, BMP280, DS18B20, Ultrasonic HC-SR04, PIR, RFID RC522, IR receiver, LDR, soil moisture, gas sensors, MPU6050, heart rate sensor, and more.
Absolutely! The code panel shows real-time Arduino C++ or MicroPython as you build. You can copy, edit, and learn from the generated code.
Use the Blynk IoT blocks! Set up your auth token and WiFi, then use virtual write blocks to send sensor values to the Blynk mobile app dashboard.
TechyGuide is free and open-source. No account required, no subscription needed. Just open the editor and start building.
ESP32 mode programs real hardware — sensors, motors, LEDs connected to your ESP32 board. Scratch mode is for learning programming with animated sprites, similar to MIT Scratch.
What our community says about TechyGuide Blocks across India.
"My students built a smart weather station in just one class period. The block-to-code view helped them understand what's happening under the hood."
"Finally a platform that doesn't need Arduino IDE installation. I use it in my coaching center and students love the drag-and-drop interface."
"The Blynk integration blocks saved me weeks of work. I built an IoT soil monitoring system for our farm without writing a single line of code."
"Great for beginners! My 12-year-old daughter built her first LED project using this platform. The Scratch mode is an excellent entry point."
"We use TechyGuide for our robotics club. The servo and motor blocks make it super easy to prototype autonomous line-following robots."
"Dual code generation — Arduino C++ and MicroPython — is brilliant. Students can compare both languages side by side. Perfect for STEM labs."
"I built a home automation system with relay blocks and Blynk. Now I control my lights from my phone! The MQTT blocks are incredibly powerful."
"The serial monitor feature is a game-changer. Debugging sensor readings in real-time right from the browser — no extra tools needed."
"As an electronics teacher, this platform transformed my classroom. Students who were afraid of coding are now building IoT projects confidently."
"ThingSpeak integration is seamless. My college project — a pollution monitoring system — was done in 2 days instead of 2 weeks."
"Love the rainbow UI and dark theme toggle! The platform itself looks so premium and polished. It rivals commercial tools that cost hundreds."
"MPU6050 accelerometer blocks are amazing. Built a tilt-controlled robot for our school science fair and won first prize!"
"The DHT sensor blocks automatically include the right libraries. No more #include errors! My greenhouse monitoring system works flawlessly."
"Used it for our ATL lab. 40 students simultaneously built projects without any installation hassle. Just open the browser and go!"
"Gas sensor and flame sensor blocks helped me prototype a kitchen safety system. The buzzer and relay integration is so intuitive."
"I recommend TechyGuide to every maker in Jharkhand. It makes ESP32 accessible to people who have never programmed before. Revolutionary!"
"The RFID block made my attendance system project a breeze. Just connect RC522, drag blocks, and it generates perfect working code."
"WiFi blocks + HTTP requests = cloud connected project in minutes. I pushed sensor data to my own server without any networking knowledge."
"BLE Bluetooth blocks let me connect my ESP32 to a mobile app. Built a wireless temperature display for my room in under an hour."
"Best open-source block coding platform for ESP32. The community is growing and the developer is incredibly responsive and passionate."
"LCD I2C blocks display sensor data beautifully. My students built a weather display showing temperature, humidity, and pressure on a 16x2 LCD."
"I was struggling with Arduino syntax for months. TechyGuide showed me the generated code and I finally understand how C++ works."
"Used TechyGuide for our school's STEM exhibition. The visual blocks + live code panel impressed all the parents and judges. 10/10!"
"Ultrasonic sensor block + servo block = automatic dustbin opener! Simple 5-block program and it works perfectly. My kids are amazed."
"As a startup founder, I prototype IoT ideas rapidly with TechyGuide. What used to take a week now takes an afternoon. Incredible tool."
"IR remote blocks decoded my AC remote signals easily. Built a universal remote with ESP32 for all my home appliances."
"Our college lab now runs entirely on TechyGuide. 60 students, zero installation problems. The web-based approach is genius."
"Heart rate sensor block + Blynk = remote health monitor. I built it for my grandmother who lives in the village. She loves it!"
"The NeoPixel LED blocks create stunning light shows. My Diwali decoration project was built entirely with TechyGuide in one evening."
"Soil moisture + water pump blocks = automated garden watering. My plants are healthier than ever. TechyGuide makes IoT practical."
"PIR motion sensor + buzzer + Blynk notification = complete home security system. The block programming approach is absolutely brilliant."
"OLED display blocks are so clean. Connected BMP280 weather sensor and displayed data on SSD1306 in minutes. Code generated was spotless."
Start your first ESP32 IoT project today. Zero setup, zero installation — just open and build.
Launch Editor →