When connecting a mega128 to a CC1100 module for SPI communication, the pin IO of the mega128 is 5V. How much resistance should be added to pull it down to about 3.3? How to add it? I just started to
I didn't upload pictures last time, but I will this time. I'm selling them at low prices to friends who need them. 1. TMS320F28035 TI original factory 50 yuan, not including postage. 2. Nuvoton nuc140
rt Our product is still in the improvement stage. Sometimes, pressing the buttons makes abnormal sounds, but no illegal operations are performed. Could it be the driver's fault?
[table=98%] [tr][td]As shown in the figure, actual verification found that if the 22UF capacitor C23 is removed, the motor vibration will be much weaker. What is the principle? The motor uses PWM sign
An amplifier made with EL2070, but the gain varies greatly in the 10M--60M band: I would like to ask you, is this a problem of phase margin or what is the cause: The circuit schematic and the tested S
How to use this 8-pin PIC for serial communication? I am designing a one-master-multiple-slave design. The slave is pic12f629. The function I need to achieve is that the slave can communicate with the