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A DIY E-bike Conversion on the Cheap

Cars That Think

Online discussions convinced me, however, that this is the expected behavior when commanding a motor to maintain a fixed amperage in its windings (thus applying constant torque) while under little load. With the power setting fixed, the wheel would spin increasingly fast and the amperage drawn from the battery would steadily increase.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

Online discussions convinced me, however, that this is the expected behavior when commanding a motor to maintain a fixed amperage in its windings (thus applying constant torque) while under little load. With the power setting fixed, the wheel would spin increasingly fast and the amperage drawn from the battery would steadily increase.

DIY 98
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Build a Passive Radar With Software-Defined Radio

Cars That Think

The biggest leap forward happened in 2012 when it was discovered that USB stick TV tuners using the RTL2832U demodulator chip could be tapped to make very cheap but effective SDR receivers. Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs.

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How I turned a shipping container into a solar off-grid charging station with A/C

Baua Electric

Well, not really cheated, but I just went with a retail solar generator system instead of DIYing that part myself from à la carte components. And the answer is to hopefully give them better wind protection. There are many ways to skin a cat, and even more ways to add solar power to a shipping container. To be fair, I cheated a bit.

Grid 52
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Dodge Circuit EV First Drive: electric car makes grand promises on Earth Day

Tony Karrer Delicious EVdriven

I also think it will be cheap, which is why I think someone will buy the group. In California, 20% of our electricity comes from zero CO2 renewables (sun, wind, geothermal), another 20% from zero CO2 hydro, and only 20.1% ↓ ↑ report 12 Throwback 11:29AM (4/23/2009) Envi includes the GEM entries.