# brainpy.inputs package¶

 constant_current(Iext[, dt]) Format constant input in durations. spike_current(points, lengths, sizes, duration) Format current input like a series of short-time spikes. ramp_current(c_start, c_end, duration[, …]) Get the gradually changed input current. PoissonInput(geometry, freqs[, monitors, name]) The Poisson input neuron group. SpikeTimeInput(geometry, times[, indices, …]) The input neuron group characterized by spikes emitting at given times. FreqInput(geometry, freqs[, start_time, …]) The input neuron group characterized by frequency.