  This work presents the first full implementation of Wave, a postquantum
code-based signature scheme. We define Wavelet, a concrete Wave scheme at the
128-bit classical security level (or NIST postquantum security Level 1)
equipped with a fast verification algorithm targeting embedded devices. Wavelet
offers 930-byte signatures, with a public key of 3161 kB. We include
implementation details using AVX instructions, and on ARM Cortex-M4, including
a solution to deal with Wavelet's large public keys, which do not fit in the
SRAM of a typical embedded device. Our verification algorithm is $\approx 4.65
\times$ faster then the original, and verifies in 1 087 538 cycles using AVX
instructions, or 13 172 ticks in an ARM Cortex-M4.
