Blink’s new video doorbell adds higher image resolution and person detection while keeping its two-year battery life — all for under $70 Blink’s new video doorbell adds higher image ...

LoRa now supports mesh networking thanks to Meshtastic, an open-source platform enabling secure, low-power, long-range ...

11 The Presidential seal always stays in the middle of the rug. 12 The red Presidential buzzer button in a wooden box, used to call aides at a moment’s notice. It is said President Johnson ...

CrowPi 3 is a Raspberry Pi 5-powered all-in-one portable AI learning and development platform with a 4.3-inch touchscreen display, plenty of plug-and-play electronic modules, a breadboard area, and ...

ATmega328p micro-controller as per schematic or alternatively a Arduino uno/nano module. Resistors: 20 ohms , 220 ohms, 660 ohms, 10K , 500ohms X 7, 1K X 4 Transistors 4 X 2N2222 NPN One 4 digit seven ...

CRYSTAL Pin 1 PIC16F877A – OSC1 13 Crystal input (clock in) CRYSTAL Pin 2 PIC16F877A – OSC2 14 Crystal output (clock out) GLCD CS1 RB0 / INT 33 Chip Select 1 GLCD CS2 RB1 34 Chip Select 2 GLCD DI (RS) ...