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Akbar 27/07/2021
It has some issues and it is not perfect, it has a DC offset at the output and it has very low power output capabilities. The output impedance is too high to power anything but as a basic low power signal source it is fine. I highly suggest building a current or power amplifier to go along side it to get more power. For the price it is a really good learning tool if you have an oscilloscope and since you are adjusting the function gen blindly without a scope it is not that useful. You could even use your phone for a function gen but this does have the advantage of better frequency range and probablyt better rise/fall times making it fast. It has its place but it is not a precision intrsument, just a hobby learning tool, try to use a capacitor in series at the output to remove the offset
Kit de générateur de signaux Geekcreit® XR2206 DIY Sortie sinusoïdale triangulaire carrée 1HZ-1MHZ
US$3.54 US$9.79
17
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Akbar 27/07/2021
Excellent value for money, the delivery for me was pretty quick. So far The Transistors, LEDs, capacitors are resistors the few I checked were fine. All parts were there but won't count each of them. They were seperated in bags anf resistors were on paper strips like in the images so finding parts was not that hard. The electrolytic capacitors and the LEDs a bit smaller than I expected but they are usable. I would suggest getting a box and spare plastic bags for more organization space and using an inventory manganement program to keep track of stuff Definately reccomend for a beginner that needs a small passive parts stock.
Kit de composants électroniques de base de démarrage avec 1390 pièces. Comprend des LED, des diodes, des transistors, des condensateurs, des résistances et des potentiomètres
US$10.99 US$15.99
1
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Akbar 27/07/2021
Although it is not a genuine Uno it looks and operates like one with the original software justt fine. The 2 Displays it comes with are also decent. Using it with the offical software at first had COM port issues but it was fine after a bit of debugging and I was able to run some of the sample codes for the displays with mixed luck with some having the screen only working and some only touch working. Might be user error as I don't have much experience with these but I would say they should revise the sample codes given in the description if they have not done already as well as the driver libraries
Geekcreit® UNO R3 Version améliorée + Écran tactile 2.8TFT LCD + Kit de module d'affichage à écran tactile 2.4TFT Geekcreit pour Arduino - produits compatibles avec les cartes Arduino officielles
US$24.99 US$34.99
1
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Akbar 27/07/2021
The wire actually feels good, The colour is slightly duller than what I expected but it is not the same as the dull cheacp PVC cables these feel like silicone and good quality. I do recomend them. They came in a printed zip lock bag which is good but I do suggest getting larger quantities as it is more economical. Buying 10meter for me soudned like a good amount but having it in hand makes it feel like a lot less, would be nice to have 20-30meters of it ideally in 2 colours. Having only 1 colour is fine but it can become confusing pretty quick
Câble en silicone rouge DANIU de 10 mètres 10/12/14/16/18/20/22AWG Câble souple
US$8.22 US$9.99
0
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Akbar 27/07/2021
Feel decent and construction is good. I would not use them with high voltage as they are pretty small and the body is also made from an alloy. These are definately meant for low voltage DC usage and modest amount of power through these would be fine. For digital and smaller electronic circuits it will be just fine. Would not trust them for large power applications but thats still fine. Over all would reccomend keeping a small stock of these for using them as a basic toggle switch. I dont know about its mounting options other than glueing it down so take that into account
60pcs SS12D00G3 interrupteur à glissière verticale mini PCB Panel 2 positions SPDT 1P2T 3 broches
US$1.99 US$6.49
0
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Akbar 27/07/2021
They are push buttons what do you expect from them, they feel fine. They are tactile as you would expect and came in a plastic bag. I have not done extensive tests on them so can't say how durable they are but for the price can't complain. I haven't put them on a breadboard yet and they seem like they might not reach down to the conductive lines comepletly so be ware of that if you plan to use them for that but for PCBs and THT Veer Boards it is fine, you could maybe bend the pins and do SMD soldering or cut the pins if you really needed to
Geekcreit® 100pcs Mini Micro Interrupteur tactile momentané Bouton-poussoir DIP P4 Normallement ouvert
US$2.99 US$4.59
0
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Akbar 27/07/2021
It's fine, came in a paper box which is acceptable to keep the breadboard and the wires and power supply were in bags. Everything seems to be there but I would say something to keep the wires in would be nice but I am using a spare plastic ziplock I have for it otherwise it comes zip tied together which is ok since it is advertised in the images like that. The power supply had a bent pin because of being in a bag but its fine as well, was a simple bending back and it was fine. Have not done a ripple and noise test on it and its pretty minute so dont use it for sensitive projects
Geekcreit MB-102 MB102 Plaque d'essai sans soudure + Alimentation + Kits de câbles jumper
US$3.99 US$15.49
0
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Câble en silicone rouge DANIU de 10 mètres 10/12/14/16/18/20/22AWG Câble souple
US$8.22 US$9.99

Q: Core is copper or aluminum? What is the resistivity for a 12AWG cable, e.g.?

demandé par j.f.34 sur 2019-04-28 12:31:02

Akbar Lookslike aluminium as mine is silver on the inside, you can use charts online to determine the resitance in a given lenth of wire at a given wire gauge

2021-07-27 05:16:23 Utile (0)
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Akbar 27/07/2021
Have not checked it but It seems just ok it is pretty tiny with bare minimum circuitery and it is very low power, have not found a use for it yet but if you really need to step down DC voltages in a very small space this may be a good option. I would say buy these in larger quantities so its more economical. You should also set the voltage when it is under the load you want to drive and measure at the recipeint device to account for any voltage drop across the wires and dont try to push it too hard its not meant for high power applications and if you need a bit more power give it some ventilation atleast
Module de convertisseur de tension Geekcreit® Mini DC réglable
US$1.99 US$9.99
0
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Geekcreit® UNO R3 Version améliorée + Écran tactile 2.8TFT LCD + Kit de module d'affichage à écran tactile 2.4TFT Geekcreit pour Arduino - produits compatibles avec les cartes Arduino officielles
US$24.99 US$34.99

Q: Unfortunately, the libraries in the description do not work well. Touch and read SD card does not work!

demandé par raro sur 2019-07-04 06:14:19

Akbar agreed,the given libraries are a hit and miss, tried em with mixed results

2021-07-27 05:12:36 Utile (0)
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