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Related Manuals for Ebyte E104-BT5040U
Summary of Contents for Ebyte E104-BT5040U
- Page 1 E104-BT5040U User manual nRF52840 USB-Type Bluetooth Module...
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Page 2: Table Of Contents
6.3 Error Rate is High ..............................12 7. Welding Guide .................................. 13 7.1 Reflow Temperature ..............................13 7.2 Reflow Curve ................................13 8. Revision history ................................14 9. About Us ................................... 14 1. Introduction................................... Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 3: Features
UART, I2C, SPI, ADC, DMA Rich peripheral resources such as, PWM, etc.; nRF52840 leads to most of the I/O ports (please check the pin definitions for details), which is convenient for users to carry out multi-directional development. E104-BT5040U is a hardware platform with factory program. See below for specific usage. 1.2 Features Under ideal conditions, the communication distance can reach 250m;... -
Page 4: Parameters
RX only run current (DCDC, 3V) 1Mbps / 1Mbps BLE 7.71 （mA） RX only run current (DCDC, 3V) 2Mbps / 2Mbps BLE 8.27 （mA） Max TX Power（dBm） -103dBm@BLE 125kbps Long range mode Rx Sensitivity（dBm） -95dBm@BLE 1Mbps Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 5 BLE4.2/5.0 Power supply USB/1.27mm 孔 Interface method USB/1.27mm 孔 nRF52840-QIAAC0/aQFN IC full name FLASH 1024kB 256kB Kernel ARM@ Cortex ® -M4 Dimensions 59*18mm Housing and ports size counted Antenna Type PCB Antenna Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 6: Dimensions And Pin Definition
Chengdu Ebyte Electronic Technology Co., Ltd. E104-BT5040U Datasheet 3. Dimensions and Pin Definition Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 7 Download interface, try to avoid USB and VDD supplying power at the same time SWCLK RESET Reset button. P1.06 function button LED1 RGB LED R (red): P0.08; G (green): P1.09; B (blue): P0.12; P0.06 USB Test Port Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 8: Development
IAR or KEIL. Testing Testing board is not available. Board 4.2Factory Default Firmware The factory firmware of E104-BT5040U is only DFU firmware (device firmware upgrade). Main features of DFU: Update application, SoftDevice and bootloader Certification update Downgrade prevention... -
Page 9: The Modified Codes
4.3.2 Disable Hash value check function File Routing：“nRF5SDK160098a08e2\components\libraries\bootloader\dfu\nrf_dfu_validation.c”. Disable below codes. err_code = nrf_crypto_ecdsa_verify(&m_verify_context, &m_public_key, m_init_packet_hash, hash_len, m_signature, sizeof(m_signature)); if (err_code != NRF_SUCCESS) NRF_LOG_ERROR("Signature failed (err_code: 0x%x)", err_code); NRF_LOG_DEBUG("Signature:"); NRF_LOG_HEXDUMP_DEBUG(m_signature, sizeof(m_signature)); NRF_LOG_DEBUG("Hash:"); NRF_LOG_HEXDUMP_DEBUG(m_init_packet_hash, hash_len); Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 10: Dfu Guide
Take the first item as an example (Bluetooth Low Energy). Select "Open" to display the interface as shown in the figure below, and select "Launch anyway". Start the Bluetooth Low Energy APP. Select the virtual serial port corresponding to E104-BT5040U. Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 11 Chengdu Ebyte Electronic Technology Co., Ltd. E104-BT5040U Datasheet E104-BT5040U has no application firmware when it is powered on for the first time. The app will prompt the user to program the module, select "Yes" and wait for the firmware update to complete.
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Page 12: Hardware Notice
The antenna must not be installed inside the metal shell, which will greatly reduce the transmission distance. It is recommended to add a 200R protection resistor to the RXD/TXD of the external MCU. Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 13: Faq
Unsatisfactory power supply may also cause garbled codes. Ensure the reliability of the power supply; Poor or too long extension cables and feeders can also cause high bit error rates. Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 14: Welding Guide
30-90 sec 液相线以上的时间 Peak temperature（Tp） 220-235℃ 230-250℃ 峰值温度 Aveage ramp-down rate（Tp to Tsmax） 6℃/second max 6℃/second max 平均下降速率 Time 25℃ to peak temperature 25℃到峰值温度的时间 6 minutes max 8 minutes max 7.2 Reflow Curve Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 15: Revision History
8. Revision history Version Date Description Issued by 2020-11-20 Initial Version 9. About Us Sales hotline: 4000-330-990 Tel: 028-61399028 Support: support@cdebyte.com Website: www.ebyte.com Address: Innovation Center B333~D347, 4# XI-XIN road,High-tech district (west), Chengdu, Sichuan, China Copyright©2020, Chengdu Ebyte Electronic Technology Co., Ltd.