ชุด DIY 5V บอร์ดตั้งเวลา 2 บิต ชุดอิเล็กทรอนิกส์ DIY นับ 2 บิต
ส่วนหนึ่งของบทวิจารณ์ได้รับการแปลอัตโนมัติ
Tiny DIY timer kit. Easy to assemble and use. Satisfied with this purchase.
Undisputedly good value, but the published schematic diagram is poor. It could usefully be annotated with 1) the "U" number shown on the pcb, and 2), the IC type number. The SN74HC00 should be drawn in the standard recognisable way. For later fault finding, the pin-numbers could be added to the IC symbols. The unused pins if the SN74HC00 should be tied to ground, as is standard good practice in CMOS design. Can you send me a proper schematic please ?
Nice kit, works perfectly, fast delivery
Okay
A great little kit. I will change one feature for convenience; replace the jumper and header with a small slide switch.