UPDATE: Range for wire antenna 17cm 433MHz, LORA mode. Software based on Radiohead (see below) with STM32L151. Minimum RSSI -84 dB for 450 meters (across building). UPDATE : Implement standalone datagram server and client from Radiohead 1.46 Support USB-CDC and Serial communication. Source codes available on github Simple LORA RF module with RF96W/RF98W (HopeRF) and STM32L151CB. Configuration via soldering jumpers for USB, standalone or Raspberry PI. Software from LoRaMac-node...
New green and white pcb for uTracker
Version CX (STM32F100C8/B - 25$) and RX (STM32F101RC - 30$) Read carefully about GSM module below ! + delivery cost via EMS Post http://www.ems.post/ http://www.emspost.ru/ru/calc/ All trackers checked. See schematics and firmware on https://github.com/x893/CarTracker RX Version photos Options: Plastic case, GSM/GPS antennas (external 3m cables), power cable and 1 input sensor cable SL868 (GPS only) GL-868-DUAL ( countries limited ) http://3.imimg.com/data3/KY/RU/MY-793343/gl868-dual.pdf Country SIM lock for the following countries: RU (Russia) UA (Ukraine) BY (Belorussia) MD (Moldova) KZ (Kazakhstan...
I see perfect adapter from Adafruit Bluefruit LE Friend but need wait a time to delivery and already exists some PT9048 . Why not use and check Bluefruit LE Friend features ? Connect PT9048 to J-Link adapter and start nRFgo Studio Program S110 nRF51822 7.1.0 softdevice Program application blefriend_s110_xxaa_0_3_1_141112_blefriend_debug.hex Connect with wires to USB-UART adapter (only 3.3V !!! Command and Data mode works fine....
Update: Compare 3 GPS modules: UBLOX MAX-M8Q Quectel L70 (GPS only) Quectel L76 (GPS/GLONASS) New version of micro animal tracker. Features: MCU - EFM32G210F128 (Cortex-M3, 128K flash) Flash memory 4Mbytes Quectel M66 GPS module from L70, L76, UBlox MAX-M7Q/8Q, Simcom SIM68V Accelerometer MMA8552 (or MPU-6050/MPU-9050) Solar panel controller Nano SIM holder 2 User LED 2 batter charge LED micro-USB for recharge and serial link to MCU Dimensions: 28x17x8 mm (photo without antennas, bettery and solar panel)...
Mini tracker with 2MP camera Features: MCU - STM32L151CB (128Kb flash) Flash memory 512Mbit (64Mb) Accelerometer MMA8552 GSM module Simcom SIM 5216E with 2MP OV2640 camera GPS module Quectel L70/L76, UBlox MAX-7Q/8Q or SIM68V MicroSD for photo and video MicroSIM holder RF module RFM95W/98W with LoRa Solar panel controller Dimensions: 48x26x8 mm...
EFM32 bootloader (Olimex EFMG880F128) support STM USART bootloader protocol. Use LEUART with 9600 b/s to communicate with host. Need add one file to STM Flash Loader demonstrator Map/EFM32G880F128.STmap Source for bootloader and application example available at Github ....
UPD: Add Eagle files Schrmatic & Board for all type of USB connectors and technology rules from Rezonit. Don't forget say thanks to SEGGER ! How to make JLink-OB-072 debug adapter. PCB with big USB, miniUSB and microUSB. Easy and correct way - buy from SEGGER and be happy. Also right way - build it yourself but with some limitation. You can't use firmware update from JLink.exe only via STM DFU utility. Now need prepare first step. Buy correct beer (Krusovice) and open it. 1. Extract binary part from JLinkARM.dll (from JLink_V512) For example from offset 7153340 (0x6D26BC) and size 41192...
Great project OpenMV but only need order 4 layers PCB. Redesign to 2 layers and now soldering and test. Additional PCB with 3G modem (H350) provide fully autonomous transmitter images. 3G modem now as arduino or Raspberry Pi shield but after testing make PCB within same size. 2 layer OpenMV Eagle files...
Update: Now you can pre-order here https://www.indiegogo.com/projects/arduino-gps-gsm-anytracer New version of small form-factor GPS/GSM tracker. Real positions available as Public on test site. Change MCU to EFM32 increase standalone time (previous version use STM32 MCU) Also change old BMA180 to MMA8562 and add 32Mbit (4MB) flash chip to save data if GSM not available or battery low. Use MS Azure platform for web site and service for collect data from trackers. Based now on GL865 but with Fibocom GSM dimensions reduce from 24x24 to 24x18 mm (GPS antenna size 15x15 on my hand) Now check various...
