Cheap WiFi Webcam: ESP32 + OV2640 camera

jensen3500

I tried to use the example from https://github.com/frank26080115/HephaestusConfig/blob/master/other/esp32cam_sketchbook.zip but when I compile I get an error. Has someone the same problem?

arhi

esp32-cam is ~4$ in PRC with free delivery

I'm looking for the cheapest wired solution (I need ~20 of them) and cheapest I could find is itead camera based on GOKE GK7102s chip. No full open source firmware but there are some hacks available... I think I'll be going with rpi3b+ and rpi camera .. waiting for quote for 20 of them to see if it's going to break my budget or not but after few months of research I think this is going to be the best option

@arhi said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

cheapest wired solution

does esp32 + enc26j80 (from memory) fit the bill? or even esp with SLIP ?

arhi

@bearer said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

@arhi said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

cheapest wired solution

does esp32 + enc26j80 (from memory) fit the bill? or even esp with SLIP ?

dunno what's SLIP ?

I'm testing ESP32-CAM with ENC26J80 but having some issues getting it work for (for now)

trying to find solution that's good & not too expensive... I had very high hopes for itead camera as most of their stuff is open source or if not open sourced by them open source by "some crazy dude on github" but .. no .. (still not gave up on them, testing the latest hack I found trying to rebuild the whole linux to put mine there ... maybe there is a way to have everything custom except blob for camera but that I can deal with, major problem I have is I once already got my lan intruded trough PRC camera that I could not update - that's why I wanna go wired only we'll see)

difference between rpi1 and rpi3 in price are minor while huge in performance so with rpi3 I can then offload a whole bunch of stuff from zoneminder to rpi.. and I can use all those rpi's in network for bunch of other stuff I normally use rpi's so the camera's can also be a cluster nodes .. so money well spent ..

we'll see if I manage to get esp32-cam to work with enc that's 7$ total for the whole device, that's cheaper than the power supply for the pi

what's that slip thing?

p.s. I have also W5500 here that I will test if I give up on ENC

@arhi said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

dunno what's SLIP

modem without the modem bit serial 1/3rd down the page https://www.tldp.org/HOWTO/NET3-4-HOWTO-7.html

I've had success with the enc28j60 for both esp and (antique) pi's but the speed is in the low hundreds kb/s range.

arhi

@bearer that's kinda slow, I'd like to have a video stream worth watching

@arhi said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

@bearer that's kinda slow, I'd like to have a video stream worth watching

it is slow, but the resolution of the espcam isn't something to write home about either, so might work - both options.

arhi

@bearer enc work is under way so I'll try to get it to work, also w5500 (I think that one is used on duet) so we'll see how it will behave

arhi

@bearer said in Cheap WiFi Webcam: ESP32 + OV2640 camera:

does esp32 + enc26j80 (from memory) fit the bill? or even esp with SLIP ?

Looks like I need to write Ethernet library myself (modify existing one). They use "SPI" object and that's not available on esp32-cam, those pins are attached to the camera module. There should be HSPI available but for that I need to do a lot of search/replace + some initialization to use HSPI port on the esp .. we'll see .. should be simple but..

hmm, bummer, only tried it with the esp8266 eons ago.

i think i've seen some nutjob implement ethernet with just a line driver and some magnetics
https://www.youtube.com/watch?v=XKnyAYKP434

arhi

@bearer interesting project but dunno if any of my switches support 10baseT and since this is for 8266 again need to rewrite it to fit esp32 .. I'll see how quickly I can fork the Ethernet library to make it use that HSPI that is supposedly available on esp32-cam (actually, first I'll just see if I can output anything on esp32-can via that hspi before I start editing that library).. we'll see .. W5500 is el cheapo, could be a good fit here.. and having both wifi and eth in a camera with sd card could be useful, even without sdcard..

I was hoping I will be able to find an open source camera out there for 20$ or under but

I'd thunk it'd work with any 10/100/1000 switch, I'd be surprised if people are makings switches that can only do 100/1000.

Anyways ,yeah, I was a little lolwhat? when i saw that video the first time, gotta love clever people with too much time on their hands :')

arhi

@bearer 10b2 is completely different framing, the protocol is totally different from 100b2 and 1000b2. I know my small switches don't do 10b2 (learned that the hard way, had to find some old hub with 100b2 uplink channel to connect some old silicon graphics and sun machines some time ago), dunno about my big managed switches if they do .. anyhow not making that, I don't think it's worth it... will see if I can get this esp32-cam to work somehow with w5500 and if not moving away from that... still have not tried that hacked firmware for the itead camera, found some additional data on that might be useful we'll see, or I'll brick one (thats why I purchased 2 )

arhi

ha, after a lot of search and replace...

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x1b (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
Ethernet WebServer Example
server is at 192.168.89.11
new client
GET / HTTP/1.1
Host: 192.168.89.11
Connection: keep-alive
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
DNT: 1

ethernet working with W5500 on ESP32-CAM ... now to send image trough web somehow

arhi

yeah, it works. ESP32-CAM + W5500 streaming jpegs

arhi

If anyone is crazy enough to need this
https://github.com/arhi/EthernetSPI2