b'Anatomy of the SparkFun RedBoardFH8 7 4 2 1 0E SCL SDA AREF GND 13 12 ~11 ~10 ~9 DIGITAL (PWM ~) ~6 ~5 ~3 TX RX G13B TXD RX ONC106 C START SOMETHING IC106 I/O ISP3.3V 5VC106 LA IOREF RESET 3.3V 5V GND POWER GND VIN A0 A1 ANALOG IN A2 A3 A4 A5K JREDBOARD HARDWARE OVERVIEWPOWER IN A (BARREL JACK) Can be used with either a 9V or 12V wall-wart or a battery pack. POWER INProvides power and communicates with your board B (USB PORT) when plugged into your computer via USB. LEDC (RX: RECEIVING)Shows when the USB-to-serial chip is receiving data bits from the computer.LEDD (TX: TRANSMITTING) Shows when the USB-to-serial chip is transmitting data bits to the computer.ONBOARD LEDThis LED, connected to digital pin 13, can be controlled E PIND13 in your program and is great for troubleshooting. PINS AREF, F GROUND, DIGITAL,These pins can be used for inputs, outputs, power and ground. RX, TX, SDA, SCL G POWER LED Illuminated when the board is connected to a power source.H RESET BUTTON A manual reset switch that will restart the RedBoard and your code.This is the In-System Programming header. It is used to program the ATMega328 I ISP HEADERdirectly. It will not be used in this guide. ANALOG IN, VOLTAGE IN,The power bus has pins to power your circuits with various voltages. The analog J GROUND, 3.3 ANDinputs allow you to read analog signals.5V OUT, RESETK RFU This stands for Reserved for Future Use.SparkFun Qwiic Cable Connector for I2C Devices. L QWIIC CONNECTOR This connection will not be used in this guide.4 : intro'