Since 35 years

Sigma Trainers and Kits
 (More than 5000 Products - Biggest in Training Industries)
Multi Wireless Micro Controller Trainers for IOT
1 Advanced Arduino Multi Wireless Network Trainer ARDMWL100
2 Advanced Raspberry pi Multi Wireless Network Trainer RSSPMWL100
3 Advanced Beaglebone Multi Wireless Network Trainer BBMWL100
4 Arduimo Advanced IOT Trainer - Using Voice Control ARDIOT400
5 Raspberry Advanced IOT Trainer - Using Voice Control RASPIOT400
6 BeagleBone Advanced IOT Trainer - Using Voice Control BBIOT400
7 Arduino to Raspberry Multi Wireless Network Trainer ARDRASPWL100
8 Arduino to Beaglebone Multi Wireless Network Trainer ARDBBWL100
9 Raspberry to Beaglebone Multi Wireless Network Trainer RABBWL100