Nayak Tarunkumar Kiritbhai et al. 2026. Design and Implementation of an IoT-Based 4-DOF Wi-Fi Controlled Robotic Arm using ESP32 and Blynk Cloud. International Journal of Innovations in Science, Engineering And Management. 5, 2 (May 2026), 286–292. DOI:https://doi.org/10.69968/6w3jr198.