The 1602 LCD display module uses an 8-bit parallel interface. If we want to control it through the I2C bus interface, we also need an I2C bus to 8-bit I/O module. The more mature solution is to expand
I copied the PCB of one board onto another and there are a lot of circles at the connections. What does this mean? Will it affect the finished board if I ignore it?
[color=rgb(0, 0, 0)][font=SimSun][size=12pt]Pull-up resistor: [/size][/font][/color][color=rgb(0, 0, 0)][font=SimSun][size=12pt]1. When the TTL circuit drives the COMS circuit, if the high level outpu
The English abbreviation of television monitoring system is CCTV (closed-circuit television). Closed-circuit television monitoring system is a comprehensive security system across industries. The syst
I built a program and downloaded it to LF2407A using "load program" in file and flash utility, without setting the csm password. It runs fine under ccs, but not under the stand-alone version. I checke