售后常见问题

hi i bought a crowpi all in one and the paper instructions have a link for the download pdf but on yiur site it just 404s

LR1262 modules - Mechanical Info - Footprint

I have ordered the LR1262 modules and i am designing a custom pcb. I would like to know if there is any mechanical documentation for the module so i can design the footprint for the pcb. Also i want to know if there are any component requirements for the boot0 and nrst pin or there are covered internally? 

I bought your screen a long time ago and have just restarted to use it, but I'm having difficulty using the on-screen keyboard because it was so small.

I cannot find the original Stylus, and purchased one on amazon as a replacement Nintendo DS one, but that one isn't working either. Do you have a suggestion for a stylus I can purchase?

The problem is, I have a competition that we are using your display for in 2 weeks and so I need a quick solution if possible.

Please let me know!

a monitor not lasting 2 years is really no durable solution.

As I am not happy in wasting a still functional monitor: the henge and the plastic structure of the monitor are broken (See picture),can I get the plastic mount separatly? I would pay for it if you can offer me a reasonable price.

I backed a crowview 14" Laptop Monitor in 2023. I use it at homeoffice 3-4 times a month.

But now the henge is broken (See picture), so I can't use the monitor.

Is it possible to get a New mechanical part?

I have been using my CrowView Note since receiving it mid November last year. I have noticed a couple of issues though!

Sometime it cannot be turned on unless connected to the mains.

The case is swelling! I have noiticed that the plastic case now touches the table top and it doesn't just sit on it's rubber feet. As a result, the bottom of the case, is picking up scratches. I reckon this could be the battery so as a precausion I have stopped using it.

I would be grateful if you can get back to me asap. 

 lesson 5 compiles and uploads but all i get is a blank screen this is your own demo , if lvgl doesn't work the display is useless , i've just recieved the 2 additional displays that i ordered from yourselves unless lvgl works I wish to return them for a refund , I would like to use your displays but thay have to work , when this is achieved we will require at least 20 for each of our customers , if i dont get a response I have no alternative but to look for an alternative possibly DWIN displays , I have installed every thing from scratch for lesson 5 lvgl version 8.3.11 i've used your lv_conf file in the library , I've selected ESP32S3 Dev Module for the board set the partion to huge and PSRAm to OPI PSRAM I've copied the PCA995 to the library , I've checked that the board it is version V3 , I've obviously selected the right comm port as it uploads also lesson 3 for the sd card works ok so my setup must be ok , the irony when the display arrived it was pre loaded with the lvgl demo which worked , I can't understand why it can't be loaded again from lesson 5 this is urgent is there anything I've missed to get this to work 

I am enjoying using the Crowview Note. I am particularly impressed by the display. The image is so sharp and clear.

I do have one question. I am using the device with an iPad mini. The recommended power to charge an iPad Mini is 20 watts, although it can use less. The USB-C port on the Crowview Note reportedly has a 5V/5A output. By my calculation, at 5V/5A output produces 25 watts, which should be more than sufficient to charge the Mini. Yet when I attach the Mini to the Note, the Mini starts to charge and then says “not charging”. Do you know why?

What is the charging voltage of the DC port of this product

CrowVision 11.6 Capacitive Touch Screen Portable HD 1366*768 IPS LCD Display - computer speaker

I have one of your monitors working with a raspberry Pi as a navigation system on my boat - it’s fantastic, I’m very happy with it.

I have a question though, I need to fit a very small computer speaker to hear ‘system sounds’ - not to ply music. Can you tell me whether the speaker output would drive a small speaker? And, if so, what the impedance would be (4 or 8 ohms) and if not, is there a solution you can recommend?