hAKi
mis contenidos
Todos los mensajes
Comentarios
Comentarios
respuestas
Preguntas

Todos los mensajes

hAKi Seriously?Need instructions for this camera?

superturbo 25/01/2018
Got the camera. It looks good and has a lot of mounts but mine didn't come with instructions or any link to a site to download instructions from. So deducting one star from value and two from quality because I can't safely use it without any instructions.
G2 Ultra HD 4K WIFI Acción Cámara 2 Inch LCD Sport DV 170 Grado Gran Angular Lente
US$49.10 US$73.99
0
Comentarios (3)
hAKi 16/12/2021
I'm a little disappointed. Signs for units are decidedly too small! Temperature measurement is inaccurate. At -18 degrees Celsius the instrument shows +5 degrees, at 0 degrees it shows +6 degrees, at +6 degrees it shows +14 degrees and at 98 degrees it shows 103 degrees. True RMS is a story in itself. With open terminals it shows some completely random values and even with closed ones it does not show 0. It works satisfactorily only for sinusoidal signals, with rectangular ones the error is already around 20% at 50Hz! Useless. Interestingly, I didn’t notice this nonsense when measuring the current.
ANENG AN870 Multímetro Digital de Rango Automático de Precisión 19999 Conteos True-RMS NCV Ohmímetro Probador
US$33.99 US$58.99
0
Recomendaciones
Comentarios (0)
hAKi 23/04/2020
Excellent product, works as expected, I already order another one. The internal 25MHz reference is not very precise and stable, I recommended to use an external 10MHz reference to get a very precise frequency. But altogether, I am very pleased with product!
Fuente de señal de RF sintetizada de frecuencia de origen PLL de 35M-4.4GHz ADF4351 placa de desarrollo
US$22.99 US$35.99
1
Recomendaciones
Comentarios (0)
hAKi 08/05/2020
Great thing, I ordered another one to also make a RF generator for a friend. In the first case, the internal reference deviated a little, but in the latter case it did not. Since the temperature stability of the oscillator is satisfactory, there is a simple solution. The oscillator frequency is measured and this value is entered into the SW. The CE pin must be HIGH for proper operation. We can connect it to 3.3V, but it is better to select a free pin on the processor, set it to HIGH and connect it to CE. I use ESP32 myself and I connected the CE pin to EN on the processor. For low phase noise, the power supply to the ADF4351 module must be separate from the processor power supply.
Fuente de señal de RF sintetizada de frecuencia de origen PLL de 35M-4.4GHz ADF4351 placa de desarrollo
US$22.99 US$35.99
5
Recomendaciones
Comentarios (0)
hAKi 13/05/2021
Nice!
5PCS XANES® EDC Cuchillo plegable 160 mm 3Cr13 Hoja afilada de acero inoxidable al aire libre Supervivencia cámping Cuchillo plegable
US$19.62 US$40.99
0
Recomendaciones
Comentarios (0)
hAKi 11/05/2021
It works great up to 2.2 GHz, then the gain starts to drop.
Amplificador de potencia de banda ultra ancha RF de ganancia de 20dB de 5-6000MHZ con módulo y carcasa
US$21.93 US$22.99
0
Recomendaciones
Comentarios (0)
hAKi 08/05/2020
Nice little display! Works well with excellent library U8g2lib.h and constructor U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE) and library U8x8lib.h with constructor U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(U8X8_PIN_NONE).
3Pcs 0.96 Pulgadas Azul Amarillo Módulo de Pantalla OLED IIC I2C
US$26.55 US$27.99
2
Recomendaciones
Comentarios (0)
hAKi 23/04/2020
Excellent amplifier! With 0,5 mW at input you get 2,6 W at output. Recommended!
Amplificador de potencia RF de banda ancha de transmisor de HF VHF UHF FM de 1MHz-1000MHZ 35DB 3W para radioaficionados
US$29.39 US$43.99
2
Recomendaciones
Comentarios (0)
Placa de desarrollo STM32F401 STM32F401CCU6 Placa de aprendizaje STM32F4
US$6.99 US$16.99

Q: Is it possible to program this black pill with Arduino IDE?

Preguntado por hAKi sobre 2020-11-14 03:30:16

Bruce Ithink it CAN

2020-11-25 02:05:00 Servicial (0)
Enviar
respuestas (1)
hAKi 18/11/2020
Good idea, execution could be better. The output filter should be better, there is a lot of residual switching noise. There is no crossover distortion and frequency response are very good indeed. Pity for output filters… Measurements are done on pure resistive load and at RMS output power of 5W.
Amplificador estéreo TPA3116 de clase D con bluetooth 5.0 HIFI 2x50W que soporta USB, tarjeta TF, RCA, AUX y USB Stick
US$35.79 US$37.99
0
Recomendaciones
Comentarios (0)
hAKi 08/05/2020
As expected.
Pantalla LCD con retroiluminación azul Geekcreit® IIC / I2C 1602 para módulo de pantalla Geekcreit para Arduino - productos compatibles con placas oficiales de Arduino
US$6.89 US$9.99
0
Recomendaciones
Comentarios (0)
Módulo generador de señal Geekcreit® 35M-4.4GHz Fuente de señal RF Sintetizador de frecuencia ADF4351 Placa de desarrollo
US$36.79 US$47.99

Q: Is it possible to drive/control Signal Generator by Arduino? Is there any appropriate library for that board?

Preguntado por hAKi sobre 2020-02-25 02:40:30

Backcour Has Arduino controlled, but not suitable for this board

2020-03-04 12:15:27 Servicial (0)
Enviar
respuestas (1)
hAKi 02/10/2019
Was tested and it is OK!
Adaptador de corriente ajustable AC/DC Excellway 4-24V 2.5A 60W con control de velocidad y pantalla de voltaje. Enchufe EU/US/AU/UK.
US$11.03 US$19.99
0
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
It works (in opposite from the one ordered before) but screen was slanted and not centred to the PCB.
Geekcreit® 1.3 Pulgadas 4Pin Blanca OLED Pantalla LCD 12864 IIC I2C Módulo de interfaz para Arduino
US$8.39 US$19.99
1
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
Definitely I do not have luck with displays from Banggood. First, received display was not as it was described. It has only one row of pins - disturbing, if you already prepare a HW. Second, one of the received displays has stains in the screen. The last, but not the least, only one of received display works and unfortunately that with stains.
2pcs módulo LCD 84x48 luz de fondo blanca de 5110 Arduino UNO prototipo
US$7.35
0
Recomendaciones
Comentarios (1)
hAKi 19/01/2018
Comes well packed and works as expected.
Controlador de motor paso a paso Geekcreit® Stepstick DRV8825 para impresoras 3D Reprap con PCB de 4 capas
US$6.80 US$13.10
0
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
Very convenient for Arduino Nano. It has pins as classical Arduino UNO + a lot of additional pins for sensors together with GND and VCC. It has additional pins for comm and I2C also. Will buy more of them.
Tablero de expansión multifunción Geekcreit 328P V3.0 para NANO UNO
US$3.99 US$9.99
0
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
Good, comes with a lot of spare screws. I like this!
Acoplamiento de brida de 5 mm Soporte de eje óptico Asiento fijo Brida rígida de acero Placa Eje Conector
US$8.07 US$8.99
0
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
Solid motor, recommended for all kind of DIY toys
Rueda de goma + motor TT de 3V-6V DC para coche robot inteligente
US$8.07 US$8.99
0
Recomendaciones
Comentarios (0)
hAKi 19/01/2018
Mini voltmeter is a nice and convenient product. They can be calibrated as well.
Geekcreit® Medidor de voltaje digital miniatura de 0,28 pulgadas y 2,5 V-30 V Probador de voltaje Voltímetro de dos líneas
US$7.24 US$8.99
0
Recomendaciones
Comentarios (0)

Usted es el experto, ¿puede ayudarme?

¡Te invitamos sinceramente a suscribirte al correo electrónico de respuesta de invitación!

Si se suscribe, lo invitaremos por correo electrónico para que responda las preguntas que la gente tenga sobre los productos. ¡Al suscribirte, también ganarás la "Insignia útil "! Puede darse de baja en cualquier momento en la página de configuración de privacidad.

¡Ayuda a los demás y sé más feliz!

  • Suscribir

Sobre insignias

Las insignias están relacionadas con la comunidad, y los usuarios obtienen insignias creando contenido de calidad, completando misiones o participando en actividades especiales. Las personas específicas también tendrán su propia insignia exclusiva.
Insignia del CEO

La insignia del CEO es propiedad exclusiva del jefe de Banggood.

Las insignias que puedes ganar llegarán pronto
  • OK

About Badges

Badges are related to the community, and users earn badges by creating quality content, completing missions, or by participating in special activities.

Helpful Badges

The Badge is awarded to users who are subscribed to the Invite Answer email and signifies their gratitude to help others. The badge appearance upgrades as the user helps more people.
  • OK

Thank you for subscribing! You have also earned a badge!

  • View It

Thank you! Your answer will help ###name### and ###num### other people!

Check awaiting answers to see more people who need help.

  • OK

Thank you! Your answer will help ###name### and ###num### other people!

Subscribe to "Invite Answer"emails and help others with product questions will earn you "Helpful Badge"!

  • Subscribe

Are you ready to help?

We invite you to subscribe to our Invite Answer email!

Subscribe and you’ll be invited to answer product’s question by email, which will also earn you a "Helpful Badge"! You can cancel any time on the privacy settings page.

  • Subscribe