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| Reference | Value | Description |
|---|---|---|
| U1 | ATMEGA328PB-ANR | AVR AVR® ATmega, Functional Safety (FuSa) Microcontroller IC 8-Bit 20MHz 32KB (16K x 16) FLASH 32-TQFP (7x7) |
| U2 | KP234XTMA1 | |
| U3,U5 | SI8600AC-B-ISR | |
| U4 | EZO_pH_Circuit | |
| U6 | EZO_Conductivity_Circuit | |
| U7 | TLV2462CP | Dual, 6-V, 6.4-MHz, RRIO operational amplifier |
| U8 |
| 5V1,AIROUT1,GND1,GND2,GNDREF1,OFF1,PRESSURE_INPUT1,RESET1,SCK0,SCL1,SDA1,SUB_RX1,SUB_TX1,TEMP_INPUT1,UV_INPUT1,VDD1,VEE1 | TestPoint |
|---|
| C1,C4-C6 | 1u/10V |
|---|
| C2,C3 | 100nF/10V |
|---|
| C7,C8,C12,C14,C18,C19 | 100n/10V |
|---|
| C10 | 4.7u/10V |
|---|
| C13,C15 | 0.1uF/10V |
|---|
| C16,C17 | 22pF/10V |
|---|
| D1 | D_Photo |
|---|
| D2 | 1N5822 | Diode Schottky 40 V 3A Through Hole DO-201AD |
|---|
| D3,D4 | LED_S |
|---|
| H1-H4 | MountingHole |
|---|
| J1,J2,J5 | SMA_CONNECTOR | RF Coaxial Straight SMA Connector |
|---|
| J3 | Screw_Terminal_01x04 |
|---|
| J4,J7,J8,J10,J11 | Screw_Terminal_01x03 |
|---|
| J6 | USB_B_Micro |
|---|
| J9 | Screw_Terminal_01x02 |
|---|
| M1,M2 | MNMOS |
|---|
| PS1,PS2 | RFM-0505S | DC-DC Converter, SIP4, 1kV unreg, Single Output, 1W, 5V Out, RFM Series | RECOM Power Inc. RFM-0505S |
|---|
| R1,R3,R10,R11,R19 | 1M |
|---|
| R2,R4,R5,R7,R16,R17 | 10k |
|---|
| R6 | 22k |
|---|
| R8,R9,R12,R13 | 10K |
|---|
| R14,R15,R20-R22 | 1k |
|---|
| R18 | 0 |
|---|
| R23 | 3.3k |
|---|
| R24,R25 | 100 |
|---|
| Y1 | AS-16.000-20-SMD-TR |
|---|