How to send SMS from Arduino UNO R4 Wifi Board? | Free Cloud API for IoT Alerts (India Only)

Want to send SMS from your Arduino UNO R4 without using any GSM module? 🔥 In this complete tutorial, we’ll show you how to send SMS alerts using Arduino UNO R4 and the FREE CircuitDigest Cloud SMS API, perfect for your IoT and home automation projects.

Code Documentation: https://circuitdigest.com/microcontroller-projects/how-to-send-sms-with-arduino-via-internet

API Documentation: https://circuitdigest.com/article/free-sms-api-for-arduino-esp32-esp8266-nodemcu-raspberry-pi

Whether you’re building a motion detection alert, a gas leak warning system, or a device status notifier, this solution helps you send mobile alerts instantly—without needing expensive GSM shields or modules!

🚀 No SIM card required
💡 Free up to 100 SMS/month
📱 Supports Indian mobile numbers
🔧 Works with Arduino, ESP32, NodeMCU, Raspberry Pi

🎓 Great for:

Arduino UNO R4 WiFi Projects

IoT SMS Notification Systems

Home Automation & Intruder Alert Projects

Smart DIY Projects for Students & Makers

————————————————————————————————————————-
Please Like, Share, and Subscribe to our YouTube Channel: https://www.youtube.com/Circuitdigest?sub_confirmation=1

To access 1000+ DIY projects and circuit designs, visit: https://circuitdigest.com/electronics-projects

You can visit https://circuitdigest.com/forums to start a discussion with our engineers regarding any project

Subscribe to our Newsletter to never miss an update on CircuitDigest:
http://eepurl.com/dJ5xqU

Find the latest electronics industry news covering new electronics components releases in various electronics domains such as embedded, power electronics, analog, digital, IoT, and Automotive industries: https://circuitdigest.com/news
————————————————————————————————————————-
Connect with CircuitDigest:
👉 Website: https://circuitdigest.com/
👉 Instagram: https://www.instagram.com/circuit_digest (@Circuit_Digest)
👉 Telegram: https://t.me/joinchat/pZ7lvkOWupBlODll
👉 WhatsApp: https://chat.whatsapp.com/GVdnowB5NI8E3fMKFGnKDp
👉 Facebook: https://www.facebook.com/circuitdigest
👉 Twitter: https://twitter.com/CircuitDigest
👉 Pinterest: https://in.pinterest.com/circuitdigest
👉 LinkedIn: https://www.linkedin.com/company/circuit-digest/

————————————————————————————————————————-