Submarine build diary

PIC RS232 to I2C
Links
General model submarine links
- Association of Model Submariners [1].
- Sub Concepts [2].
- RC-submarines [3].
Motor controller links
- Goes into the theory of a speed controller [4]
- Robot wars team build a PWM motor controller using a h-bridge and a PIC [5].
- Bidirectional DC Motor Speed Controller [6].
- Robot Store UK - various pre-built speed controllers [7].
- Nice list of simple motor speed controllers intended for remote control applications [8]
- Nice simple circuit (called power chopper) that excludes the PWM stage [9]
- PWM Motor Controller 3A 12-55V for $26.95 [10].
- Power MOSFET Gate Driver Circuits [11]
Microprocessor links
- NewMicros? (I've got the MinPod?) [12].
- Phidgets [13].
Motherboard links
- Review of VIA EPIA M10000 Mini-ITX motherboard being used to control a robot [14].
- Quasar electronics. Various power supplies, including a 24 to 12 DC-DC converter. [15].
- PC/104 [16].
- Luno.net. Wifi stuff, antenna etc. [17].
PIC & Serial communication
- C code to use hardware I2C port to talk to slave compass [18].
- How to interface a PIC to RS232 [19].
- [20]
- Pre-programmed PIC16F818 running on an internal 8MHz clk. It is intended to provide general purpose I/O expansion on the I2C bus[21]
- Pic as an i2c slave [22]
- Using the PWM hardware on 16F876 [23].
- PIC tutorial [24]
- PICs sinking and sourcing [25]
- 12 Series pic controlling a servo [26]
- Tutorial and code for interfacing RS232 to PIC [27]
Lead acid batteries
- Electrochemistry Lead Acid Battery (Estimation of Voltage, Current and Time during Discharge or Charge, Determination of the Capacity and the Battery Efficiency) [28].
Sensors
- Pressure Sensor-Based Altimeter Circuit [29].
- Sensorland (bit industrial) [30]
- robot-electronics.co.uk. Magnetic Compass [31]
PCB
- PCB track length calculator [32]
- Instruction on making a PCB using Press-n-Peel [33]
Logic Chips
- Summarises logicl families (4000 and the 74 series) [34]