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martinberlin
This is a joint project between Larry Bank and Fasani Corp with the purpouse to make an easy and unexpensive nRF52 BLE badge with a SPI 2.9", a QWIIC connector, and on board RTC
| Reference | Value | Description |
|---|---|---|
| Q1 | Si1308 | |
| Q2 | Si2301CDS | |
| U1 | E73-2G4M08S1C | |
| U2 | MCP1700-3302E_SOT23 | |
| BT1 | Battery_Cell | Single-cell battery |
| C1,C2 | 10uF | |
| C3,C4 | 15pF | |
| C5 | 100nF | |
| C6,C7,C11,C13-C15,C17 | 4.7uF | |
| C8-C10,C12 | 1uF | |
| C16 | 4.7uF 50V | |
| C18 | C_Pol 100uF | |
| CN1 | HX JN1.27-2X5 TP H4.9 | |
| D1-D3 | MBR0530 | |
| D4 | LED | Light emitting diode |
| D5 | 1N5817 | |
| J1 | USB_C_Receptacle_USB2.0 | |
| J2 | AFC24-S24FIC-00 | |
| J4 | SM04B-SRSS-TB_LF__SN_ | |
| L3 | 10uH |
| R1,R14,R15,R20 | 5.1k |
|---|
| R2,R4 | 1k |
|---|
| R3,R21 | 10k |
|---|
| R5 | 3.3k |
|---|
| R6,R9 | 470k |
|---|
| R7,R10 | 10K |
|---|
| R8 | 0.47R |
|---|
| SW1 | TM-2023 |
|---|
| SW3 | K2-1806SQ-A2DW-04 |
|---|
| Y2 | RTC_Crystal_32MHz |
|---|