Schematic diagram: https://www.tinkercad.com/things/9DwTGredKBn-neat-leelo-albar/editel?tenant=circuits?sharecode=hXi5L2Cp7-_QYJtA6BmAkfuuD5_-HvKCDJoM14FU2Ds=
flex sensor information: https://components101.com/sensors/flex-sensor-working-circuit-datasheet
flex sensor datasheet: https://components101.com/sites/default/files/component_datasheet/Flex%20Sensor%20Datasheet.pdf
Servo motor used: https://www.electronicoscaldas.com/datasheet/MG996R_Tower-Pro.pdf
about the hand, cad files and assembly: http://inmoov.fr/hand-and-forarm/