Before BLE is connected, the peripheral device needs to broadcast continuously, and the central device scans, discovers the broadcast and then connects.But how to configure the broadcast data? This is
Recently, the domestic chip that has been praised by old forum friends , the 800MHz RISC-V MCU theme live broadcast is coming, coming~
This Wednesday night from 20:00 to 21:00, we have invited senior
Ripple exists in theory and in practice. There are five common ways to suppress or reduce it:
1. Increase inductance and output capacitor filtering
According to the formula of switching power supply,
The measuring range is 10Hz-50Mhz, and it is displayed by an 8-digit digital tube. The principle of the digital frequency meter is very simple, which is to calculate the number of pulses of the signal
The same hardware and software have a normal quiescent current of 100uA. Why do some machines reach 120 or 130uA? What's the reason? I have been looking for a long time but have not found the reason.