

NumDisciplineBLE
BLE Breakout Board To Replace ATMega Used In NumDiscipline
- Size
- 53.3 × 24.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 57
- Pads
- 131
- Tracks, vias
- 448, 39
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Nov 2020
- Updated
- 7 Nov 2020
Overview
NumDisciplineBLE is an open-source printed circuit board by ericrlau, from the ericrlau/NumDisciplineBLE repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 53.3 × 24.1 mm with 20 parts on 57 nets, routed with 448 tracks and 39 vias.
It is built around the E73-2G4M08S1C, TP4054 and XC6220B331MR-G, with the AO3407 among its other parts. Its parts include 7 resistors, 4 connectors, 3 ICs, 3 diodes and 2 transistors.
Main components
4E73-2G4M08S1C
SMD,18x13mm-103dBm、-95dBm -40℃~+85℃ 120m 17.05mA 3.3V 8.27mA 8dBm Bluetooth 5.0、Bluetooth 4.2 PWM、SPI、ADC、USB、I2C、ISP、JTAG、DMA nRF52840 Chip SMD,18x13mm Bluetooth Modules ROHSChengdu Ebyte Elec TechBluetooth ModulesTP4054
SOT-23-5L-40℃~+85℃ 1 25uA 4.2V 4.2V~6.5V 500mA Charging IC Lithium Battery Not supported 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 SOT-23-5L Battery Management ROHSUMWBattery ManagementXC6220B331MR-G
SOT-25-40℃~+85℃ 1 1A 3.3V 50dB@(1kHz) 655mV@(1A) 6V 8uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Output discharge Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAO3407
SOT-23-55℃~+150℃ 1 P-Channel 1.4W 1V 260pF 30V 37pF 4.1A 75mΩ@4.5V P-Channel ±20V SOT-23 MOSFETs ROHSBORNMOSFETs
README
README.mdnRFMicro
BLE board to replace the ATMEGA32A-PU used on the NumDiscipline (https://github.com/ericrlau/NumDisciplineBLE)
Based on the work of joric and the nrfMicro - Project wiki: https://github.com/joric/nrfmicro/wiki
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R4, R8 |
| 2 | 2M | Resistor_SMD:R_0603_1608Metric | R7, R9 |
| 2 | AO3407 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 1N5819 | Diode_SMD:D_SOD-323F | D1 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_MicroCrystal_CM9V-T1A-2Pin_1.6x1.0mm | X1 |
| 1 | 820K | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | BLUE | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | Conn_02x20_Counter_Clockwise | nrfmicro:2x20_P2.54mm_Vertical_SMD_reversed | J1 |
| 1 | E73-2G4M08S1C | nrfmicro:E73-2G4M08S1C-52840 | U1 |
| 1 | Ex_Bat | nrfmicro:connector_bat | J3 |
| 1 | Ex_USB | nrfmicro:connector_usb | J4 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | RPROG | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | SWD | nrfmicro:connector_swd | J2 |
| 1 | TP4054 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | XC6220B331MR-G | Package_TO_SOT_SMD:SOT-23-5 | U2 |
Questions
How big is the NumDisciplineBLE PCB?
It measures 53.3 × 24.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the NumDisciplineBLE use?
20 parts, built around the E73-2G4M08S1C, TP4054, XC6220B331MR-G and AO3407. 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.
Where can I download the NumDisciplineBLE KiCad files?
From the ericrlau/NumDisciplineBLE repository on GitHub, at the commit this page was made from: the board is hardware/NumDisciplineBLE.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the NumDisciplineBLE design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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