“…[21]- [23], [39], [50], [55], [62], [69]- [72], [79], [80], [86] Cameras 11 (13.41%) [20], [34], [35], [43], [44], [47], [49], [52], [63], [65], [66] Microcontrollers 7 (10.29%) [34], [47], [48], [58], [59], [66], [67] Virtual/remote laboratories 6 (8.82%) [20], [47], [53], [73], [74], [82] Biometric sensors 5 (7.35%) [34], [52], [66], [67], [71] Environmental sensors 5 (7.35%) [41], [53], [59], [66],…”