Due to time constraints, today I will mainly introduce the hardware part. The main principle is that MSP430 controls a card reader module RC522 to collect relevant information in the card and then tra
After installing protel 99 se, the following problem occurred. I tried many methods but couldn't solve it. It's very urgent. I hope the experts can help me.
Web2.0 has a promising profit prospect 2006-7-11China's top portal website recently officially entered the full "blogging" state. On May 17, Ding Lei announced at NetEase's financial report press conf
This courier is too unreliable... One side of the socket was pressed to an angle, and several pins inside were broken. A corner of the other side was directly flattened. Note that it was flattened, bu
[i=s]This post was last edited by cruelfox on 2017-10-6 16:29[/i] The PCBs I make for DIY are not very big, and they are mainly made of surface mount components, and are completely soldered by hand. W
[i=s] This post was last edited by paulhyde on 2014-9-15 09:44 [/i] It consists of a single-chip RF transceiver chip nRF401, a microcontroller MSP430F1121, TLV320AIC10, which is a 16-bit A/D, D/A audi