MilanCRO
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MilanCRO 14/02/2019
Excellent low noise microphone amplifier + electret microphone on it. Power it either with 3.3V or 5V, you may feed directly out to your Arduino ADC input. The output from this preamplifier is about half of the VCC voltage. There is AGC (Automatic Gain Control), but it may be bad if you want use it as YouTube microphone for your computer - while not talking, all background noises are amplified. To disable AGC, short together pins 13 and 14 on the chip, or better to adjacent resistors with designations "222" and "154". This way audio is more silent when not talking close to the microphone. I found also useful pre-amplifier for other things where no need bias resistor, just "raw" analog input. In this case use soldering iron and remove 2.2 kOhm resistor (designation "222"). This way bias voltage will be not present on input pin (just unsolder microphone capsule) and you have really great pre-amplifier for your projects (radio communications, various detectors, and so on). I will provide picture with place where to make short if you want to disable AGC. Next to this spot is resistor "222" which can be also removed together with microphone for use to other purposes as a high quality and low noise pre-amplifier. Bandwidth of this preamp is about 35 kHz.
Módulo amplificador MAX9814 de alto desempenho com AGC para microfone CMA-4544PF-W
US$4.99 US$10.99
5
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MilanCRO 20/04/2019
Excellent board for learning Python and things about MCU. And good thing is that accelerometer - that is really exciting to learn that too. Just plug and play - there is already installed Micro Python inside. It will open main folder with boot.py and main.py - change main. py with your code and click on run (I am using uPyCraft). Plenty of space - 1 MByte of flash memory, 192 kByte of RAM. Not to mention fast speed of 168 MHz. Really worth investment. I regret did not bought two boards, but will do.
PYBoard MicroPython Placa de desenvolvimento IoT STM32F405 Python para Arduino - produtos que funcionam com placas Arduino oficiais
US$28.77 US$31.99
0
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MilanCRO 01/04/2019
Cheap yet excellent climber. Not proportional controls, but fun to drive anyway. Pure joy. Battery is bit old style: Ni-Cd, but I think it can be upgraded to Li-ion or Li-Poly with appropriate charging adapter. Recommended product. Thank you Banggood again.
Flytec 9118 1/18 2,4G 4WD Automóvel de Liga Escalada RC Fora de Estrada
US$35.99 US$59.99
1
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MilanCRO 02/04/2019
Flytec 9118 1/18 2,4G 4WD Automóvel de Liga Escalada RC Fora de Estrada
US$35.99 US$59.99
2
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MilanCRO 18/03/2019
Good, simple but good. Small footprint, fit everywhere. thanks
Botão de pressão preto mini interruptor 5pcs 6A-10A 110V 250V KCD1-101 2 pinos Snap-in On/Off
US$1.99 US$2.99
0
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MilanCRO 18/03/2019
Excellent resistors. Just wanted more values, but hey, for that price... Thanks.
Kit sortido de 600 resistores de filme metálico Geekcreit® de 1/4W, 30 tipos de valores de 1%, 20 de cada valor
US$2.99 US$8.69
0
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MilanCRO 15/05/2019
Mini broca manual de alumínio Drillpro com mandril sem chave e 10 brocas helicoidais ferramenta rotativa
US$9.99 US$11.99
1
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MilanCRO 15/05/2019
Excellent and really pro DrillPro tool for hand drilling. Also, I am using small pieces of screwdriver - better than any original screwdriver that has finger support. Drilling and everything else is now really easy and drilled holes are perfect.
Mini broca manual de alumínio Drillpro com mandril sem chave e 10 brocas helicoidais ferramenta rotativa
US$9.99 US$11.99
0
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MilanCRO 03/05/2019
JJRC Q65 2.4G 1/10 Jedi Controle proporcional Crawler 4WD Off-Road RC Car
US$59.99 US$71.99
1
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MilanCRO Really good stuff.

MilanCRO 21/04/2019
PYBoard MicroPython Placa de desenvolvimento IoT STM32F405 Python para Arduino - produtos que funcionam com placas Arduino oficiais
US$28.77 US$31.99
0
Comentários (1)
MilanCRO 21/04/2019
PYBoard MicroPython Placa de desenvolvimento IoT STM32F405 Python para Arduino - produtos que funcionam com placas Arduino oficiais
US$28.77 US$31.99
0
Recomendações
Comentários (1)

MilanCRO Good!

MilanCRO 02/04/2019
Flytec 9118 1/18 2,4G 4WD Automóvel de Liga Escalada RC Fora de Estrada
US$35.99 US$59.99
2
Comentários (2)
MilanCRO 18/03/2019
The boxes are super for collecting small parts. Excellent stuff on Banggood.
Organizador Ajustável com 10 Compartimentos de Plástico Transparente Craft Caixa
US$4.53 US$5.43
0
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MilanCRO 15/01/2018
G301 Foco Ajustável 532nm 5mW Ponteiro Laser de Luz Verde
US$10.99 US$13.99
6
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MilanCRO 15/01/2018
Although it says less than 5 mW, I measured 88 mW on mine. I believe that each one may be slightly different, but for this price - no complain. Excellent laser pointer.Thanks Banggood.
G301 Foco Ajustável 532nm 5mW Ponteiro Laser de Luz Verde
US$10.99 US$13.99
2
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MilanCRO 02/01/2018
Orico H3TS-U3 de Alta Velocidade 3USB 3.0 Portas Hub Multifuncional com Leitor de Cartão SD & TF
US$19.99 US$23.99
0
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