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ULN2803 Relay Driving IC
and Kc determine the modulus ("divide-by" number) of the first and last counting sections
The board can be used for LoRaWAN wireless communication development and other IoT projects
Educational Purposes
HTC DM-91 Digital Multimeter Other Batteries ULN2803 Relay Driving ICHTC DM 91 Digital Multimeter If you are looking for an extremely versatile multimeter, HTC produces a large variety of multi functional instruments. The HTC DM 91 can test current, voltage, resistance, capacitance, transistor hFE, frequency, temperature, and diode. This 700V LCD display terminal interlock digital multimeter has a continuity buzzer, anti shock protection, and auto power off after 30 minutes. The HTC digital multimeter has a backlight