Aislamiento hacia VSYS del Pico: diodo Schottky D1 desde el “5V Buck Out” a VSYS, con reserva C1.
Regulación a 3.3 V para dispositivos de control
El PICO toma VSYS y genera 3.3 V (Net “Vcc3v3 Pico”) para los periféricos.
Alimentados a 3.3 V: radio U3 (NRF24L01), GNSS NEO-M9N, barómetro BMP280, IMU MPU-6050, con desacoplos locales C2, C3.
Dominio de respaldo (solo GNSS backup)
Moneda CR1220 V_BCKP a través del diodo D2 y el condensador C6 mantiene NEO-M9N:V_BCKP cuando el principal se corta.
En resumen: los XT60 ([J1]-[J5]) distribuyen 14.8 V a potencia/ESC; el buck [MP2338] genera 5 V, el diodo [D1] alimenta VSYS del [PICO], y el [PICO] entrega 3.3 V a los dispositivos de control.
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
General Purpose Thick Film Standard Power
and High-Power Chip Resistor
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film
Features:
- RMCF – standard power ratings
- RMCP – high power ratings
- Nickel barrier terminations standard
- Power derating from 100% at 70ºC to zero at +155ºC
- RoHS compliant, REACH compliant, and halogen free
- AEC-Q200 compliant
This PCB is for a quad copter drone. The drone will use a 4S lipo battery as a power supply and each of the motors will use 30Amp ESC's. The microcontroller that handles the RF signals is a Raspberry Pi Pico.
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor
Qty 1
Digi-Key
$26.94–$42.09
LCSC
$66.21
Mouser
$41.88
Controls
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