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It acts as a connection bridge between the electronic building block module and the Arduino board
Providing Detailed Example For Speech Dialog
We also offer an I2C interface option using the PCF8574T controller
= Prints this command list
support 9-24V external voltage input
nRF52840 Bluetooth 5.0 Module TOL4 It acts as a connectionNRF52840 Bluetooth 5. 0 Module, Small Size, Stable Performance Core52840 is a Bluetooth 5. 0 module based on nRF52840, it is pretty small in size, yet still provides stable and reliable performance, can be directly integrated into kinds of products. Core52840 Specifications Onboard chip: nRF52840 Communication distance: 150m (open outdoor), 40m (indoor) Data rate: 2Mbps, 1Mbps, 500kbps, 125kbps Frequency range: 2. 4GHz Operating voltage: 2. 0V ~ 3. 6V
