bids are invited for based smart switch 420pcs 22 values 20 each 1206 smd resistor , smd capacitors 1206 pack of 90 cap , mg16126 a helping hand for pcb with multifunctional magnifier magnifying glass and soldering iron stand with led light , hi link hlk pm01 ac to dc pcb mountable step down power module dc 5v by 3w power converter , breadboard jumper wires ribbon cables kit, multicolored , nano v3point 0 atmega328p ch340g controller development board module nano 328p , acs 712 5a current sensor module , acs 712 20a current sensor module , acs 712 30a current sensor module , zmpt 101 b voltage sensor module , 5v dc mini power relay , st7540 fsk power line transceiver , tda 5051 at power line modem , esp32 oled module for wifi and bluetooth , esd anti static gloves pu finger coated , ade7753 ic smd package single phase multi function metering ic , kq 330 power line carrier communication module , 20 x 30 cm universal double sided pcb prototype board , tlp250 board , smps 15v by 5a supply of components for implementation of iot total quantity : 122