The SMART Response XE is a handheld computer that was originally sold for use in the classroom as a terminal for pupils taking tests. It’s now cheap enough on the surplus market to have become a ...

MICRF505 的典型应用：850MHz 和 950MHz ISM 频段收发器。 MICRF505 是一款真正的单芯片频移键控 (FSK) 收发器，适用于半双工、双向 RF 链路。多通道 FSK 收发器适用于 UHF 无线电设备，符合北美联邦通信委员会 (FCC) 第 15.247 部分和欧洲电信标准协会 (ETSI) 规范 EN300 220 欢迎 ...