cnc shield v3 engraving machine / 3D Printer / + 4pcs A4988 driver expansion board

HM-T series FSK transmission moduleFEATURESHIGHLY INTEGRATED, SMALL SIZEHIGH SENSITIVITY, LOW POWER CONSUMPTIONFSK TECHNOLOGY, SUITABLE FOR REPLACING ASK MODULESLESS INTERFRENCE, LONGER

HM-TRP Series 100mWTransceiver modulesFeatures
 Low cost, high performance , high reliability
 FSK modulation, 2-way half –duplex communication, strong anti-interfere
 433/470/868/915MHz

High Power Radio Data Transceiver – 433MHzJust released new higher power wireless data transceivers, up to 13dBm. Ideal for sending