Today, we find many children with difficulties in dealing with physical and mental tasks. Technology promotes welfare of the differently abled children along with bringing social justice to them on humanitarian grounds. Assistive devices with sensor technology are the humanitarian technologies which are essentially required for the differently abled children. They can have a better life if they are provided with assistive devices with sensor technology i.e., assistive technology. Technology has a great impact on the differently abled child's life as the child becomes independent in performing his day to day activities. The parents of differently abled children expect that there should not be any socio-psychological restrictions to their child. Disability of the child can have less impact on the development of the child and even their family if the child can perform the activities independently which can be achieved with the help of assistive technologies. Assistive technology not only helps the differently abled children to lead a normal life but also helps the children to overcome their disability and get educated. In India, statistics reveal that differently abled children are more in rural areas than in urban areas. The main reason for this situation is unavailability of good pediatrician and gynecologist. Differently abled children in rural areas are discriminated. Some of these children are even abandoned during childhood. The reason being, such parents are not educated, they have low socio economic background and lack of knowledge in latest technologies. Technology has opened plethora of opportunities for assisting differently abled children. This paper mainly focuses on providing the information of the assistive devices with low cost sensor technology which are helpful for the (i) Autistic children (ii) Children with visual impairment and Dyslexia and (iii) Physically challenged children.