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Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

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U1
Not Recommended for New Designs
consider adding 100nF capacitor on RESET line
markwuflux

markwuflux

consider adding 100nF capacitor on RESET line
2y
2
A6
A7
Note 6
Line 1
A quick explainer for the reset circuitry
Line 2
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Line 3
State 1: (SW Open) = 1MOhm impedance | Lower impedance path is R2 @ 10kOhm so the voltage on MCU_RESET net is 5V (not reset)
Line 4
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Line 5
State 2: (SW Closed) = 0Ohm impedance | Lower impedance path is SW1 @ 0 Ohm so the voltage on MCU_RESET net is 0V (reset)
D9
UART_MCU_TX
XTAL1
D11_COPI
D2
A4
D7
A1
A2
+5V
AREF
D10
D5
A5
D13_CLK
D8
Note 3
Line 1
You will find MOSI and MISO renamed to COPI and PICO respectively here. COPI stands for Controller Out Peripheral In and CIPO stands for Controller In Peripheral Out
Line 2
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Line 3
Don't forget to connect this to a physical ICSP breakout to flash the Arduino!
UART_MCU_RX
D3
MCU_RESET
XTAL2
XTAL1
D12_CIPO
A3
D4
A0
D6
+5V
R1
Resistance
1MΩ
R2
Resistance
10kΩ
SW1

Arduino Nano Barebones - SMD No Header

Arduino Nano Barebones - SMD No Header thumbnail
Important Note: You must connect your own SPI/ICSP programming header if you want to burn the Arduino bootloader to the MCU. In this version, you must also provide your own UART interface.
SMD Manufacturing: Need a hotplate and solderpaste
Good to haves:
  • Oscillator Decoupling Caps Expose UART via connector Programming Button Onboard LED Reset Button
You don't have to populate everything! Only these are mandatory: Reset Button
Find the reference schematic here: https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Digi-Key

$1.00–$2.66

LCSC

$2.50–$3.04

Mouser

$2.66

Controls