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Merge branch 'master' of https://git.unsigned.io/markqvist/RNode_Firmware

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Mark Qvist 2023-01-16 13:34:59 +01:00
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# Building RNode
Using the schematics here, it is possible to build an RNode yourself. Schematics are supplied in PDF and Eagle format. Part list is in RNode_BOM.csv. It's also possible to breadboard an RNode using the following parts:
- An Arduino
- A TXB0801 logic level converter
- A 3.3v regulated DC supply (for supplying the LoRa chip)
- A Semtech SX1276 module
You can assemble the circuit like in the schematic, but only care about the connections going between the MCU and logic level converter, and from the logic level converter to the LoRa module, plus the supply lines, and optionally the LEDs.
Fritzing files for breadboard setup and links to recommended components are coming soon.

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Schematics/RNode.sch
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Part;Value;Device;Package;Description
1284P;ATMEGA1284P-AU;ATMEGA1284P-AU;QFP80P1200X1200X120-44N;Microcontroller
IC;N/A;FT230XS;SSOP16;USB to UART IC
C1;100nF;C-EUC0603;C0603;Capacitor
C2;22pF;C-EUC0603;C0603;Capacitor
C3;22pF;C-EUC0603;C0603;Capacitor
C4;100nF;C-EUC0603;C0603;Capacitor
C5;10uF;C-EUC0805;C0805;Capacitor
C6;47pF;C-EUC0603;C0603;Capacitor
C7;47pF;C-EUC0603;C0603;Capacitor
C8;100nF;C-EUC0603;C0603;Capacitor
C9;100nF;C-EUC0603;C0603;Capacitor
R1;10;R-EU_R0603;R0603;Resistor
R2;10;R-EU_R0603;R0603;Resistor
R3;1K;R-EU_R0603;R0603;Resistor
R4;270;R-EU_R0603;R0603;Resistor
R5;10k;R-EU_R0603;R0603;Resistor
R6;27;R-EU_R0603;R0603;Resistor
R7;27;R-EU_R0603;R0603;Resistor
R9;270;R-EU_R0603;R0603;Resistor
R10;2.2K;R-EU_R0603;R0603;Resistor
RF_RX;N/A;LED_ESML0603;LED_SML0603;LED
RF_TX;N/A;LED_ESML0603;LED_SML0603;LED
RX;N/A;LED_ESML0603;LED_SML0603;LED
TX;N/A;LED_ESML0603;LED_SML0603;LED
U1;TXB0108;TXB0108PWR;TSSOP20;8-Bit Bi-Directional Level Shifter
U2;AP7215-33YG-13;AP7215-33YG-13;SOT89-3L;3.3 volt regulator
XTAL;16MHz;XTAL/S;QS;Crystal Oscillator
USB;N/A;USBMOLEX;USB-MINIB-THM-MOLEX;USB Connectors
JP1;N/A;M02PTH;1X02;Connection point(s)
DTR;N/A;CONN_01;1X01;Connection point(s)
UART;N/A;M04PTH;1X04;Connection point(s)
INAIR_L;N/A;CONN_07;1X07;Connection point(s)
INAIR_R;N/A;CONN_07;1X07;Connection point(s)
1 Part Value Device Package Description
2 1284P ATMEGA1284P-AU ATMEGA1284P-AU QFP80P1200X1200X120-44N Microcontroller
3 IC N/A FT230XS SSOP16 USB to UART IC
4 C1 100nF C-EUC0603 C0603 Capacitor
5 C2 22pF C-EUC0603 C0603 Capacitor
6 C3 22pF C-EUC0603 C0603 Capacitor
7 C4 100nF C-EUC0603 C0603 Capacitor
8 C5 10uF C-EUC0805 C0805 Capacitor
9 C6 47pF C-EUC0603 C0603 Capacitor
10 C7 47pF C-EUC0603 C0603 Capacitor
11 C8 100nF C-EUC0603 C0603 Capacitor
12 C9 100nF C-EUC0603 C0603 Capacitor
13 R1 10 R-EU_R0603 R0603 Resistor
14 R2 10 R-EU_R0603 R0603 Resistor
15 R3 1K R-EU_R0603 R0603 Resistor
16 R4 270 R-EU_R0603 R0603 Resistor
17 R5 10k R-EU_R0603 R0603 Resistor
18 R6 27 R-EU_R0603 R0603 Resistor
19 R7 27 R-EU_R0603 R0603 Resistor
20 R9 270 R-EU_R0603 R0603 Resistor
21 R10 2.2K R-EU_R0603 R0603 Resistor
22 RF_RX N/A LED_ESML0603 LED_SML0603 LED
23 RF_TX N/A LED_ESML0603 LED_SML0603 LED
24 RX N/A LED_ESML0603 LED_SML0603 LED
25 TX N/A LED_ESML0603 LED_SML0603 LED
26 U1 TXB0108 TXB0108PWR TSSOP20 8-Bit Bi-Directional Level Shifter
27 U2 AP7215-33YG-13 AP7215-33YG-13 SOT89-3L 3.3 volt regulator
28 XTAL 16MHz XTAL/S QS Crystal Oscillator
29 USB N/A USBMOLEX USB-MINIB-THM-MOLEX USB Connectors
30 JP1 N/A M02PTH 1X02 Connection point(s)
31 DTR N/A CONN_01 1X01 Connection point(s)
32 UART N/A M04PTH 1X04 Connection point(s)
33 INAIR_L N/A CONN_07 1X07 Connection point(s)
34 INAIR_R N/A CONN_07 1X07 Connection point(s)

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