
Mdb ai bridge esp32s3
nodestark/mdb-esp32-cashless
ESP32-based MDB cashless device for vending machines, supporting EVA DTS DEX/DDCMP telemetry and payments over the MDB protocol via Bluetooth and MQTT

An ESP32-S3 powered ClockClock24 clone
ClockProject is an open-source printed circuit board by TurtleWhal, from the TurtleWhal/ClockClock repository on GitHub. It is a 2-layer board of 400 × 100 mm with 62 parts on 74 nets, routed with 673 tracks and 51 vias.
It is built around the ESP32-S3FH4R2. Its parts include 15 capacitors, 15 resistors, 10 connectors, 2 ICs and 2 switches. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | MountingHole | MountingHole:MountingHole_3.5mm | H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12 |
| 7 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C3, C4, C6, C10, C11, C12, C15 |
| 6 | DNS | Resistor_SMD:R_0805_2012Metric | R4, R6, R8, R11, R24, R25 |
| 5 | 0 | Resistor_SMD:R_0805_2012Metric | R3, R5, R7, R9, R10 |
| 4 | ~ | JoradanCustom:VID28-05 | M1, M2, M3, M4 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C7, C13, C14 |
| 3 | Conn_01x03_Pin | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J10, J11, J13 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 18pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric | C5, C9 |
| 2 | 240 | Resistor_SMD:R_0805_2012Metric | R22, R23 |
| 2 | Conn_01x07_Pin | JoradanCustom:HDR-SMD_7P-P2.54-H-F-L11.5 | J1, J2 |
| 2 | Conn_01x07_Pin | JoradanCustom:HDR-SMD_7P-P2.54-H-F-L11.5-RIGHT | J3, J4 |
| 2 | Conn_01x09_Socket | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J5, J6 |
| 2 | SW_MEC_5E | JoradanCustom:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL_H1.5 | SW1, SW2 |
| 1 | 1.8nH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | 40MHz | JoradanCustom:Crystal_SMD_TXC_7M-4Pin_3.2x2.5mm | Y1 |
| 1 | ESP32-S3FH4R2 | JoradanCustom:QFN56_S3FH4R2_EXP | U1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | USB | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Right | J9 |
It measures 400 × 100 mm and has 2 copper layers, 1.6 mm thick.
62 parts, built around the ESP32-S3FH4R2. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the TurtleWhal/ClockClock repository on GitHub, at the commit this page was made from: the board is Schematic/ClockProject.kicad_pcb and its schematic Schematic/ClockProject.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask TurtleWhal before reusing the design.

nodestark/mdb-esp32-cashless
ESP32-based MDB cashless device for vending machines, supporting EVA DTS DEX/DDCMP telemetry and payments over the MDB protocol via Bluetooth and MQTT

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