poller implementation

Makefile

@@ -39,6 +39,8 @@ coverage: ## Generate global code coverage report
 coverhtml: ## Generate global code coverage report in HTML
 	./scripts/coverage.sh html;
 
+build-poller: ## build modbus-poller for current machine Arch
+	@go build -o modbus-poller cmd/modbus-poller/main.go
 
 help: ## Display this help screen
 	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

README.md

@@ -37,6 +37,7 @@ go get github.com/aldas/go-modbus-client
 * Client (TCP/UDP +RTU) separated from Modbus packets
 * Convenience methods to convert register data to/from different data types (with endianess/word order)
 * Builders to group multiple fields into request batches
+* Poller to request batches request and parse response to field values with long-running process.
 
 ## Examples
 
@@ -74,6 +75,10 @@ for _, req := range requests {
 }
 ```
 
+### Polling values with long-running process
+
+See simple poller implementation [cmd/modbus-poller/main.go](cmd/modbus-poller/main.go).
+
 ### RTU over serial port
 
 RTU examples to interact with serial port can be found from [serial.md](serial.md)