nibble-arts/DigiSlatePlusThe project is in an early developement state.
DigiSlatePlus is an open-source printed circuit board by nibble-arts, from the nibble-arts/DigiSlatePlus repository on GitHub. It is a 2-layer board of 270 × 135.9 mm with 122 parts on 123 nets, routed with 1,633 tracks and 105 vias.
It is built around the ESP32-S3-WROOM-1-N8, MAX7219M and LM2596S-ADJ, with the DS3231MZ+, DW01A and TP4056 among its other parts. Its parts include 34 resistors, 25 ICs, 21 capacitors, 14 diodes and 10 connectors. It belongs with the ESP32 boards of this library.
The project is in an early developement state.
DigiSlate+ is inspired from the DigiSlate and the DIY timecode generator from mitkunz. The aim for the DigiSlate+ is not only to be able to read and display timecode, but also to generate it itself. To make this possible, the hardware is extended by a real time clock with high running accuracy. The RTC module DS3231 with temperature-compensated quartz offers the possibility.
The DigiSlate+ has two operating states. If an external time code is fed in and the slate is switched on, it starts in read mode. The time code is read, shown on the LED display and the time in the RTC is updated. The DS3231 sends an interrupt to the controller at the beginning of each second. The offset of frames to the time code fed in is stored in the EEPROM memory in order to provide a frame-accurate time in free-running mode.
As soon as the external time code is disconnected or the slate is switched on without a time code at the input, it changes to free-running mode. It now runs automatically with the time from the RTC and the saved frame offset. The accuracy of the RTC module allows a deviation of 1 frame in 8 hours.
A socond row of 7-segment LEDs display the scene and take numbers.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SA15-11SRWA | 7-segment-led:FYS-12011A | U3, U4, U5, U6, U8, U9, U10, U11, U12, U13, U14, U15, U17, U18, U19, U20 |
| 12 | 10K | Resistor_SMD:R_1206_3216Metric | R1, R2, R3, R4, R12, R16, R26, R27, R28, R29, R30, R32 |
| 9 | 100nF/50V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C6, C12, C15, C19, C21 |
| 6 | 100 | Resistor_SMD:R_1206_3216Metric | R11, R13, R14, R15, R17, R31 |
| 6 | LED | LED_THT:LED_D3.0mm_FlatTop | D1, D2, D3, D4, D5, D6 |
| 4 | 1 | Button_Switch_THT:SW_PUSH-12mm | SW2, SW3, SW4, SW5 |
| 4 | 10nF/50V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8, C10, C13, C17 |
| 4 | 470R | Resistor_SMD:R_1206_3216Metric | R7, R8, R9, R10 |
| 3 | 180 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R24, R25 |
| 3 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R18, R19, R21 |
| 3 | 20K | Potentiometer_SMD:Potentiometer_Vishay_TS53YL_Vertical | RV1, RV2, RV3 |
| 3 | 2N2222 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q4 |
| 2 | 100uF/10V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C14, C18 |
| 2 | 220uF/10V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C16, C20 |
| 2 | 220uF/25V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C9, C11 |
| 2 | 470uF/10V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C5, C7 |
| 2 | 4K7 | Resistor_SMD:R_1206_3216Metric | R5, R6 |
| 2 | LED | LED_THT:LED_D10.0mm | D7, D8 |
| 2 | MAX7219 | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U7, U16 |
| 2 | Mains | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J5, J6 |
| 1 | +8-24 Volt | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J3 |
| 1 | 10K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV4 |
| 1 | 1K2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22 |
| 1 | 1K8 | Resistor_SMD:R_1206_3216Metric | R33 |
| 1 | 1N4148 | Diode_SMD:D_PowerDI-123 | D14 |
| 1 | 360R | Resistor_SMD:R_1206_3216Metric | R20 |
| 1 | 3V3 | LED_SMD:LED_0603_1608Metric | D13 |
| 1 | 5K6 | Resistor_SMD:R_1206_3216Metric | R34 |
| 1 | 5V | LED_SMD:LED_0603_1608Metric | D12 |
| 1 | 68uH | Inductor_SMD:L_7.3x7.3_H3.5 | L1 |
| 1 | BOOT | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW6 |
| 1 | Battery | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J4 |
| 1 | Battery_Cell | Battery:BatteryHolder_ComfortableElectronic_CH273-2450_1x2450 | BT1 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U2 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U22 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | EXT | LED_THT:LED_D3.0mm | D11 |
| 1 | FS8205A | Package_SO:TSSOP-8_3x3mm_P0.65mm | Q3 |
| 1 | IO7 | Connector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_Vertical | J10 |
| 1 | KA78M05_TO252 | Package_TO_SOT_SMD:TO-252-2 | U24 |
| 1 | LD1117S33TR_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U25 |
| 1 | LED_Dual_KAK | LED_THT:LED_D3.0mm-3 | D9 |
| 1 | LM2596S-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin6 | U21 |
| 1 | LOGO | Logos:Open-Source-Hardware-Logo | G*** |
| 1 | MISO | Connector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_Vertical | J9 |
| 1 | RotaryEncoder-SW | Rotary_Encoder:RotaryEncoder_Bourns_Horizontal_PEC12R-2x17F-Sxxxx | SW1 |
| 1 | SS310 | Diode_SMD:D_SMA | D10 |
| 1 | Serial | Connector_JST:JST_XH_B5B-XH-AM_1x05_P2.50mm_Vertical | J1 |
| 1 | TP4056 | TP4056:TP4056-42-ESOP8_TPW | U23 |
| 1 | Timecode IN | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J7 |
| 1 | Timecode OUT | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J8 |
| 1 | USB_B | Connector_USB:USB_B_Lumberg_2411_02_Horizontal | J2 |
| 1 | WC1602A | Display:WC1602A | DS1 |
digislateplus/digislateplus.github.io
DigiSlate+ is based on the DigiSlate and is inspired by the DIY timecode generator from mitkunz. The aim for the DigiSlate+ is not only to be able to read and display timecode, but also to generate it itself.
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jumarubea/OpenSmartMeter
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It measures 270 × 135.9 mm and has 2 copper layers, 1.6 mm thick.
122 parts, built around the ESP32-S3-WROOM-1-N8, MAX7219M, LM2596S-ADJ and DS3231MZ+. 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 nibble-arts/DigiSlatePlus repository on GitHub, at the commit this page was made from: the board is hardware/PCB/DigiSlatePlus.kicad_pcb and its schematic hardware/PCB/DigiSlatePlus-Power.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 nibble-arts before reusing the design.