ฝัง
- เผยแพร่เมื่อ 13 มิ.ย. 2021
- We teardown the LIDL Paw Patrol Talkie Walkie and measure it.
LIDL also has this model with Frozen and Minions branding.
BK4802N datasheet can be found here:
datasheetspdf.com/pdf/1331023...
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That bench looks like mine. Nice and organized, Where I know where everything is.
Thanks for that great video. I find it really inspiring that people are interested in electronics and reverse engineering. Hopefully it will inspire future generations !!!
What was that little gadget you had to get the reading from the walkie-talkie?
A cheap frequency counter made by IBQ. The cheap one does not go too high and has a cheap computer crystal as the frequency reference.
But it's a good tool for getting a general idea of where stuff transmits on while not endangering my better instruments.
It's also conveniently small.
I have my IBQ101 for 12 years pretty nasty expensive that time because not from ebay and other but reseller eshop in my coutry. It's not perfect but good to check which frequency is transmitting on UHF radios or if it's transmitting on 446Mhz low power device thermal&humidity sensor for weather station, wireless pir sensors, remote controls, dorbell buton etc. Usable also for VHF but not very accurate for CB and hard to read actual frequency. But 3pcs GP ReCyko+ AAA batteries in there from new still in good condition
So cool!
I Have Teared Down SOO Many Walkie Talkies In My Time That Its Not Even Funny, Sadly I Did Not Videotape It. :)
Most Of Them Are PMR These Days, But years Ago, They Where Crazy Frequencies, EVEN 7.150MHz, Some Of Them Are Just 27mhz and 40mhz, still have them around somewhere :D
7.150MHz I'm yet to do and I'd love to do some 2.5MHz FM one's from russian railway/metro.
And I liked looking inside radios, so I figured others might as well.
Hi! Great video! Can you please help me? What do you think!? I have a older submersible topcom walkie talkie that uses 4,8v 700mah Nimh batteries. Consisting of 4 solded AAA 1,2V. So the compartment takes any AAA. The Nimh is a old technic and I like to replace this with Li ion. 4x1,5V =6V is that too much? Or 3x1,5=4,5V, a little lower than original.. Will the machine work on either of those? Will the original bench-charger work? What's your opinion? Thanks!
Yes, the 6V is very likely too much. And Lithium cells are nominal 3.6volts a piece, not 1.5V.
And that's nominal, fully charged they can be 4.2V a piece.
I would likely just replace the old cells with new good quality nimh's.
I'm not sure that there is some obvious safe and easy way to use lithiums for that.
Radios with 7.4V (6x 1.2V cells) are easier, as 2x Lithium-ion/polymer, or better yet, lithium iron phosphate are a decent fit.
Did zou ever manage to interface an arduino to the I2C ?
Your videos are really cool. I just found your channel today
Glad you like them! I usually have raw video for two or more videos in the pipeline. But editing is always a chore.
Oh wie geil,du hast den Frühstückstisch mit Schlachtteilen voll😂😂😂❤pmr lowcost good❤???
Уменя тоже были радиостанции с такими же микросхемами. Но частота был на 462.561мГц, кварц был на 21 мегагерц с чем-то киллогерцами. Флеш память FMD B1J1RME
Yep, seen it used in super simple FRS radios.
Also seen the better chip BK4811 used in some FRS and PMR446 radios.
Nice, can increase the output power for more transmitting range without external amplifier?
also changing the frequency i mean in the uhf band..
Much more output would require an amplifier compared to running the chip barefoot, like they are doing here. There might be couple of tens of milliwatts of power available from the chip.
For a frequency change in the 400-480MHz UHF band you'd need to find out the I2C pins on the chip and then talking to those pins with some microcontroller like arduino or esp32.
The RF chip is Beken BK4802, like stated in the video.
with that radio you wouldget about 1 thousend ft apart
Sir, How or maybe why does it work? Is this a SOC radio? How would you find out in what computer language (Linex, Basic, Pascal) it runs with? Thank you
It is a single chip radio. And it has a built in ROM that can be used if using channel1 on PMR446. No external programming required at all.
And if there is a separate microcontroller (MCU) that is used to control it, then it depends on the microcontroller and it's vendor on what tooling exists for it.
Usually there's a C compiler available for more or less all microcontrollers.
In the case of some very cheap or limited one's one might have to resort to assembler.
@@dietxanadu3914 Yet it is not radioddity. And it's likely a low-IF DSP deal like all cheap radio chips.
Mine had bk4802n SOP 24
Oh very nice. And interesting that they have different revisions for sale. Was it also a Paw Patrol branded one or either Minions or Frozen?
@@2ftg cheap Dollar Store Paw Patrol. Board Says 2017.
@@jj74qformerlyjailbreak3 Ah! Mine was bought last week, so it might be a more recent and even more cost optimized design.
@@2ftg Wow Maybe I Think Mine Has 16 Channels But I’d Have To 👀 At The Paper.
how can i upgrade kids toy to make it real walkie talkie
Same ques
go to your big box store and buy one off the shelf at least you would have line of sight 2 miles
The cost of this circuit board is 6CNY, which is too expensive
0.79eur is a great price for pcb like that for experimenting. Btw have you come across a datasheet or pinout for the SOIC/SOP version of BK4802?
I only have the datasheet for the QFN32 version.
@@2ftg Now they are all packaged in SOP, and the QFN package is too complicated.
@@2ftg I have been using the SOP package because I am a walkie-talkie manufacturer.
@@PDcharger Aah! That sure makes it easier.
@@PDcharger That makes perfect sense for simple radios like the one pictured here.
Still wild to find more advanced chipsets like BK4819 in some simple FRS radios nowadays.
👍👍 ManTaP 👍👍 BaGuS
This is too difficult, I will make a more common walkie-talkie
Awesome!
buy a middlen at least you nget a 2 mile range as I do with mine
❤❤❤😂
Can I have 2
.
Give us a video of you modifying the product
you cant modify junk just go to your big box store and buy from them you will get line of site
2 miles radio's
Hätten die abschirmen müssen!🎉😂😂😂 10milliwatt TX?
nice vid. we waiting for hacking :)
Hello🎉❤
Why do you Just throw things about ?