Mellerayba/StudyWithKeyStudyWithKey is firmware for a microcontroller which controls a bluetooth remote designed for use on quizlet
StudyWithKey is an open-source printed circuit board by Mellerayba, from the Mellerayba/StudyWithKey repository on GitHub. It is a 2-layer board of 60.5 × 59.5 mm with 14 parts on 55 nets, routed with 105 tracks and 20 vias.
It is built around the ESP32-S3-WROOM-1-N8 and AMS1117CD-3.3. Its parts include 5 switches, 3 capacitors, 3 resistors, 2 ICs and 1 connector. It belongs with the radio and wireless boards and the ESP32 boards of this library.
A custom Bluetooth LE macro remote for flashcard/study-app navigation — built from a breadboard proof-of-concept through to a battery-powered custom PCB.
Currently halted - critical flaw in the ordered PCBs and I am not in a financial position currently to reorder them. Firmware is completely functional and available to use freely
Sadly the ordered PCB's arrived with a fatal flaw, the switches were miss oriented - causing an internal short circuit. I managed to re - solder some switches however it is not viable to do this for the entire order. I am not currently in the financial position to continue this project after such a set back; however, the firmware is completely functional and available to use on any ESP-32.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | SW_Push | Button_Switch_SMD:SW_SPST_PTS645Sx43SMTR92 | SW1, SW2, SW3, SW4, SW5 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C6, C7 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | AMS1117CD-3.3 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U2 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
It measures 60.5 × 59.5 mm and has 2 copper layers, 1.6 mm thick.
14 parts, built around the ESP32-S3-WROOM-1-N8 and AMS1117CD-3.3. 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 Mellerayba/StudyWithKey repository on GitHub, at the commit this page was made from: the board is Hardware-Prototypes/kicad/StudyWithKey.kicad_pcb and its schematic Hardware-Prototypes/docs/Schematic.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 Mellerayba before reusing the design.
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