Ok, any hardware additions to an existing Raspberry Pi * Minera environment or any adjustments to the hardware parameters specified in Minera Settings > Manual-options do indeed require recompiling cgminer. In order to resolve, proceed with the following:
1.
cd /var/www/miner
sudo nano build_miner.sh
-enable-blockerupter
CGMINER_CONFIG="--enable-avalon2 --enable-bflsc --enable-bitforce --enable-bitfury --enable-drillbit --enable-hashfast --enable-icarus --enable-klondike --enable-modminer --enable-blockerupter"
5. Run
sudo ./build_miner.sh all
7. Log-in to the Raspberry Pi and sign-in to Minera- you should see verifiable success displayed in the Minera Dashboard > Device Tree.
Hope it helps!