Todos los mensajes

pendersricardo Lookin the description on this page, Banggood provides a direct download link to the correct driver that you have to install before connecting the Arduino to your computer so Windows is able to recognize the USB chip on the Arduino.

2021-11-14 01:47:06 Servicial (0)
Enviar
respuestas (2)

pendersricardo Youcan see it yourself what the exact pinout is for the Arduino Nano, you can either Google "Arduino Nano Pinout" and then open the images page to see many examples or you just go to the following link here: >> forum[DOT]arduino[DOT]cc[SLASH]t[SLASH]trying-to-identify-pins-arduino-nano-3-0[SLASH]497650 << which is the official Arduino Forum and find out.

2021-11-14 01:39:06 Servicial (0)
Enviar
respuestas (10)

pendersricardo Ineed the charger to have a battery internal resistance indication, I also need it to have the two test programs that you mentioned the Liitokala 500 has. If you have any idea which charger does have all the functions, please let me know because I can't make out just from the descriptions which one I need.

BG814494536 30/07/2021
Chegou com quase 20 dias. Muito bem embalado, cabos de boa qualidade e estojo para guardar (img.01). Ele NAO VEM COM CARREGADOR. Você tem que providenciar um de boa qualidade (img.02), provei com um de celular de 1 Amp e não foi. Ainda bem que tenho o do Tablet de 2.1 Amp e funcionou a maravilha. Como nesta semana também chegou o Liitokala 500, as comparações cabem (img.03).... O Liitokala é o Master da cocada, custa 50% a mais que o Astrolux (que por sinal já vi mais barato com outros nomes como Ysii, Pujimax, etc). A vantagem do Liito 500 começa pela fama e segue porque tem 2 programas de carregamentos de teste... mas perai meu irmão... Por que comprou o Astrolux? ... É porque queria também um carregador inteligente que funcionasse com cabo USB e que fosse mais portavel. Estive entre o Nitecore USD2 (2 slot de carregamento) y este Astrolux com 4 Slots, ambos no mesmo valor. Pensei que tinha errado ao escolher o Astrolux, Mas não. Valeu a compra e recomendo o aparelho por até certas vantagens no conclusivas que encontrei vs o Liito 500 e outras vantagens muito objetivas. Com o Liito provei tudo que conseguí de Ni-Metal AA y AAA, mas, 4 baterias Sony de alta performance que tenho ha muitos anos, carregaram só 300 mAmp en media sendo que uma só 50 mAmp. Provei elas no Astrolux e mandou para mais de 2000 mAhm (imag.04) sinalando uma como ruim. No Liito não deu para saber o estado. Quando o Astrolux deteta uma bateria ruim ou com mal contato, não vai e a tela fica toda ligada titilando (img.05). As vantagens objetivas são custo, peso (Liito 360 gr c/ carregador, Astro só 160 gr/ 220 gr c/ charger), menor, Pode carregar com Power Bank (img.06). Que é justamente a ideia. Em acampada, carregar o Power Bank com Placa Solar, e logo carregar AA e AAA para o radio e lanternas no Astrolux. No painel -sempre ligado- mostra quais baterias ainda estão carregando, % e os mAh que levan, alem do tempo de carga e tensão. Realmente recomendo. vou aposentar meu GP de 30 anos (img.07)
4
Comentarios (1)
pendersricardo 04/07/2021
I'm so happy that I got this scope as my very first one, delivery was pretty fast and the box it came in is sufficient to prevent any damage. The probes that I got with this scope are 80MHz rated which is great. My scope came upgraded to 200MHz from the factory so no need to do that yourself, there's new firmware that you can download for this scope on the Hantek website dated 02-25-2021 ( Link: http://hantek.com/uploadpic/hantek/files/20210225/dso5kp_func_dso5072p20210225.rar ) and you can safely install the new firmware without having to worry about losing the upgrade to 200MHz that will stay exactly the same, you can trust me about this because I just did it myself and I didn't know for sure if it would go alright and the seller couldn't tell me either but I assure you the firmware update can be done safely. I also opened the scope just to have a look inside and to my surprise I found that it has a slot for a micro SD, I had one 16GB to spare so I put it in the micro SD slot and now I can save stuff to the internal memory card instead of using a USB-stick. This isn't mentioned anywhere so I thought you might want to know this. This scope will be more than enough for the things that I'm using it for so I'll be using this scope for many years to come, if you are not sure which scope you should buy if you haven't had one before I highly recommend you to buy this scope because it is hard to find a similar one in this class for the price. I've included a couple of pictures to show that the box came in undamaged and that I've installed the new firmware and it's still a 200MHz scope. Thanks Banggood for the great service, I'm really happy with this scope.
6
Recomendaciones
Comentarios (0)

Q: What is the power consumption, specially of the backlight? Thank you!

Preguntado por fabio_oliveira500 sobre 2020-07-01 05:34:45

pendersricardo About1 watt

2021-10-18 12:16:55 Servicial (0)
Enviar
respuestas (3)

pendersricardo Ifyou haven't bought this camera I would strongly advice not to buy it because it's worthless.

2021-10-18 12:16:15 Servicial (0)
Enviar
respuestas (2)

Q: can any of these 555 timers withstand 5MHz frequency?

Preguntado por BG151238531 sobre 2021-10-01 07:44:00

pendersricardo I managed to get my 555 timers that I purchased here up to about 450 KHz and still get a stable square wave out, I can go a little higher but then my 555 timers at least lose stability. The low voltage 555 timers which are different can go higher up to 1 MHz I believe, 5 MHz is not possible with the 555 timer chip.

2021-10-18 12:11:28 Servicial (1)
Enviar
respuestas (4)
pendersricardo 02/09/2021
So I got this drone delivered today and I think it's awesome, to compare it with the DJI Ryze Tello drone that I also own I can already tell you that this drone is at least as much fun if it's not more even. If you already have some experience flying drones, this thing flies just as a normal drone with the motors on the 4 outside corners, the difference is negligible. In fact this drone is easier to control because it has a dedicated real controller that works really well, just on the first flight I recommend you to go in an area where you have enough room around you to be able to hover and use the trim buttons so it will hold itself in the same place if there's no wind of course but it does it really well. I haven't figured out yet how to switch between the two camera feeds but it worked for me right out of the box. I didn't have to do any weird button combinations or anything like that, just put the batteries in the drone and the controller, connect the drone to my phone with the app that also works quite well and when it all connected I could start to fly within 10 minutes how cool is that? I'm absolutely going to have a lot of fun with this little drone and I'm so happy that this one came to me right at the time that my older drone the Ryze Tello has dead batteries so this one couldn't come at a better moment in time and I want to thank Banggood for their great service and for sending me this product free of charge to test it and give my honest impression and it really is. I tell you this because I want you to know how I got this to be transparent and my opinion is not biased it's just a really well put together product that just works straight out of the box. I highly recommend this drone to anyone who wants to have some fun with it and especially beginners since it's so easy to fly and it doesn't cost you a fortune in the worst case scenario should you destroy it by accident. I hope this review is helpful to you.
1
Recomendaciones
Comentarios (2)

pendersricardo So now after a year using these resistors I can tell you that these are very strong resistors capable of double the amount of power that\'s on the specs, by accident I\'ve pushed these resistors to 220 watt, I did mount them on an old CPU cooler of course and I have active cooling using a fan, they do get really hot and I don\'t know how long the resistor can take that amount of abuse but I\'ve let my test run for about half an hour and they are still within spec and working as new so no problem to overdrive these for a short while.

pendersricardo 17/06/2020
1
Comentarios (1)

pendersricardo UPDATE: Because of the app not working on my phone and not getting any answers from Vstarcam support I decided to try and hack this camera, which is too easy and may be a security risk even. I hacked my Arduino Nano so that I can use the USB to TTL chip on the backside of the Nano separately using the RX and TX pins and with that connected to my home made level shifter board (because the camera\'s UART pinout is 3.3 volt and the Nano is 5 volt logic) I can now read out all the information I need to reprogram the camera so I can do whatever I want with it without using their app or cloud service. If you\'re interested and want to know how to hack this camera you can go to my GitHub page at: https://github.com/soharddbwarez for more info.

pendersricardo 25/07/2021
6
Comentarios (1)

pendersricardo @Banggood Thank you very much for sending this product for free, I hope you like my review and I also wrote a review on the ResellerRatings website for you, here\'s the link: https://www.resellerratings.com/user/RicardoPenders And I wish you all the very best.

pendersricardo 02/09/2021
So I got this drone delivered today and I think it's awesome, to compare it with the DJI Ryze Tello drone that I also own I can already tell you that this drone is at least as much fun if it's not more even. If you already have some experience flying drones, this thing flies just as a normal drone with the motors on the 4 outside corners, the difference is negligible. In fact this drone is easier to control because it has a dedicated real controller that works really well, just on the first flight I recommend you to go in an area where you have enough room around you to be able to hover and use the trim buttons so it will hold itself in the same place if there's no wind of course but it does it really well. I haven't figured out yet how to switch between the two camera feeds but it worked for me right out of the box. I didn't have to do any weird button combinations or anything like that, just put the batteries in the drone and the controller, connect the drone to my phone with the app that also works quite well and when it all connected I could start to fly within 10 minutes how cool is that? I'm absolutely going to have a lot of fun with this little drone and I'm so happy that this one came to me right at the time that my older drone the Ryze Tello has dead batteries so this one couldn't come at a better moment in time and I want to thank Banggood for their great service and for sending me this product free of charge to test it and give my honest impression and it really is. I tell you this because I want you to know how I got this to be transparent and my opinion is not biased it's just a really well put together product that just works straight out of the box. I highly recommend this drone to anyone who wants to have some fun with it and especially beginners since it's so easy to fly and it doesn't cost you a fortune in the worst case scenario should you destroy it by accident. I hope this review is helpful to you.
1
Comentarios (2)