Seven Segments : Electronics for hobby and RC models

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Battery Chargers
Battery Chargers, Dischargers and Equalizers
- Low cost charger
  This battery charger/discharger performs a fixed charge/discharge on a battery pack. The programmable parameters are embedded in the PIC firmware.
  - Project features
    Project description and main features listing
  - Schematic description
    Low cost charger schematic diagram description
  - File resources
    To download available file resources
- Basic charger
  This charger is completely reprogrammable via PC serial port. In stand alone mode the user can select two independent charge/discharge profiles.
  - Project features
    Project description and main features listing
  - Schematic description
    Detailed schematic description
  - Firmware description
    PIC microcontroller firmware description
  - Project building
    Building notes and mounting tips
  - File resources
    To download available file resources
- Advanced Charger
  This charger has a complete reconfigurability of parameters via PC or in stand-alone mode.
  - General description
    The instrument is intended to overcome some limitations of the basic charger and offer more flexibility to the users.
  - Schematic description
    Advanced Charger schematic explained.
  - PIC firmware description
    PIC program for Advanced charger guidelines.
  - Building notes
    Advanced charger building tips and notes.
  - BUGS in previous PCB version
    List of previous version known bugs
  - Firmware release 1.1
    New PIC firmware with some improvements
  - File resources
    To download available file resources
- Advanced Charger HV
  This charger has the same hardware of the Advanced Charger but chan charge/discharge up to 19 cells
  - General description
    This charger has the same hardware of the Advanced Charger but can charge/discharge up to 19 cells.
  - Charger profiles manager
    This applicative allow the management via personal computer of the battery profiles stored into the Advanced Charger.
  - Advanced Charger monitor
    Program for charge/discharge waveform monitoring
  - File resources
    To download available file resources
- Universal Charger
  Fast charger for NiCd, NiMh, LiPo and SLA batteries
  - Firmware features
    Description of the Universal Charger features
  - Charger usage
    Description of the charger on-the-field usage
  - Charger calibration
    Description of the calibration process to be performed before the charger usage.
  - General Manager SW
    Short reference for general manager software usage
  - Display Manager SW
    A short reference for the display manager
  - Charger hardware
    Universal charger hardware
  - Front Panel
    Assembly of the charger front panel
  - Heat sink
    Charger Heat sink assembly
  - Main PCB
    Main PCBa ssembly
  - Rear Panel
    Rear panel assembly
  - Final assembly
    Charger final assembly
  - Hardware procurement
    Procurement of the hardware parts
  - File resources
    To download available file resources
- DC DC converter
  High Power DC/DC converter for charge of packs up to 12 cells
  - Project main features
    High power 24V DC DC converter
  - DC DC converter schematic description
    Description of the DC/DC converter project .
  - DC DC converter PCB assembly
    How to build the DC/DC converter project
  - File resources
    To download available file resources
- Basic equalizer
  This equalizer has programmable cell cut-off voltage and discharge rate. The parameters can be reconfigured in stand alone mode.
  - General description
    This equalizer discharge the battery packs with individual action on each cell.
  - Schematic description
    Description of the schematic diagram for Basic Equalizer.
  - PIC program description
    PIC source code remarks and description
  - Basic Equalizer building notes
    Tip and tricks for basic equalizer building.
  - File resources
    To download available file resources
- LiPo Balancer
  Balance, in charge, the quantity of charge flowing in each cell.
  - LiPo Balancer element
    Description of the LiPo balancer element schematic.
  - LiPo Balancer base
    Description of the LiPo Balancer base schematic.
  - Building the balancer
    Tip and tricks to easily build the LiPo balancer system.
  - LiPo balancer firmware
    Description of the LiPo balancer firmware
  - LiPo Balancer calibration
    Description of the calibration process for the LiPo balancer
  - File resources
    To download available file resources
Model Trains
Digital (and not) system for model trains control
- Light flasher
  Flashing lights for end of train signaling. No external power supply needed.
  - General description
    Light flasher general description.
  - Schematic description
    Light flasher schematic description and usage.
  - PIC program description
    PIC source description.
  - Building notes
    How to build a light flasher.
  - File resources
    To download available file resources
Miscellaneous
Various electronic projects.
- RPM counter
  RPM counter that uses only a computer with soundblaster card
  - RPM counter description
    Project main features
  - File resources
    To download available file resources
- Wattmeter
  Basic multimeter for volt, ampere and watt measurement.
  - General Description
    Wattmeter features and description
  - Schematic description
    Wattmeter schematic explained
  - Pic Firmware Description
    Wattmeter source code remarks
  - Building notes
    Wattmeter building notes
  - File resources
    To download available file resources
Tech Beans
Simple technical beans for miscellaneous electronic tools
- Null modem cable
  Very basic cable for serial communication.
  - Null modem cables
    Null modem cables wiring description