LPC8N04 unboxing notes

tobot

LPC8N04 unboxing notes [Copy link]

This content was originally created by EEWORLD forum user tobot. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source LPC8N04 unboxing notes I recently received the LPC8N04 from eeworld for trial use. As planned, I will unbox it first. Probably due to logistics reasons, when I received the board, it was already 10 days after the board was shipped. The outer packaging was slightly damaged, the anti-static bag was intact, the P1 and P2 connector pins on the corners of the board were slightly bent, and the board had no obvious damage. A USB cable was delivered with the board. Open the anti-static packaging and take out the board. From the cloth board, the front is the components and the back is the indicator light. Compared to the front, the silkscreen on the back is a little blurry (of course it has something to do with the poor pixel of my phone) The size of the board is about 33.2mm*112.5mm, of course it is measured manually, so the accuracy is limited. There are four mounting holes on the board, but they are concentrated on one side. The board has two battery slots, and the information does not specify which model it is. I tried to use the GPA76 (AG13) of the Speedmaster to install it on BAT2, but it could not be installed due to the thickness. I used CR2032 to install it in the other battery slot (BAT1), but it did not light up the board. The reason is unknown. The battery voltage was measured to be 2.99V, which should be consistent with the description of "Support for 1.72 V to 3.6 V external voltages" in the datasheet. When powered by a USB cable, the indicator lights D11, D16, D21, D27, D33, D38, and D43 on the back light up and turn off in sequence, and then D43 and D11 light up and turn off in reverse phase, with a cycle of about 1.5 to 2 seconds. Here is a high-definition picture