diff --git a/esp-idf-examples/simplewifi-rpc/.gitignore b/esp-idf-examples/simplewifi_rpc/.gitignore
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/.gitignore
rename to esp-idf-examples/simplewifi_rpc/.gitignore
diff --git a/esp-idf-examples/simplewifi-rpc/CMakeLists.txt b/esp-idf-examples/simplewifi_rpc/CMakeLists.txt
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/CMakeLists.txt
rename to esp-idf-examples/simplewifi_rpc/CMakeLists.txt
diff --git a/esp-idf-examples/simplewifi-rpc/Makefile b/esp-idf-examples/simplewifi_rpc/Makefile
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/Makefile
rename to esp-idf-examples/simplewifi_rpc/Makefile
diff --git a/esp-idf-examples/simplewifi-rpc/README.md b/esp-idf-examples/simplewifi_rpc/README.md
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/README.md
rename to esp-idf-examples/simplewifi_rpc/README.md
diff --git a/esp-idf-examples/simplewifi-rpc/build-all.sh b/esp-idf-examples/simplewifi_rpc/build-all.sh
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/build-all.sh
rename to esp-idf-examples/simplewifi_rpc/build-all.sh
diff --git a/esp-idf-examples/simplewifi-rpc/config.nims b/esp-idf-examples/simplewifi_rpc/config.nims
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/config.nims
rename to esp-idf-examples/simplewifi_rpc/config.nims
diff --git a/esp-idf-examples/simplewifi-rpc/main/.gitignore b/esp-idf-examples/simplewifi_rpc/main/.gitignore
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/.gitignore
rename to esp-idf-examples/simplewifi_rpc/main/.gitignore
diff --git a/esp-idf-examples/simplewifi-rpc/main/CMakeLists.txt b/esp-idf-examples/simplewifi_rpc/main/CMakeLists.txt
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/CMakeLists.txt
rename to esp-idf-examples/simplewifi_rpc/main/CMakeLists.txt
diff --git a/esp-idf-examples/simplewifi-rpc/main/Kconfig.projbuild b/esp-idf-examples/simplewifi_rpc/main/Kconfig.projbuild
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/Kconfig.projbuild
rename to esp-idf-examples/simplewifi_rpc/main/Kconfig.projbuild
diff --git a/esp-idf-examples/simplewifi-rpc/main/apps.nim b/esp-idf-examples/simplewifi_rpc/main/apps.nim
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/apps.nim
rename to esp-idf-examples/simplewifi_rpc/main/apps.nim
diff --git a/esp-idf-examples/simplewifi-rpc/main/nim.cfg b/esp-idf-examples/simplewifi_rpc/main/nim.cfg
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/nim.cfg
rename to esp-idf-examples/simplewifi_rpc/main/nim.cfg
diff --git a/esp-idf-examples/simplewifi-rpc/main/ota_rpc_example.nim b/esp-idf-examples/simplewifi_rpc/main/ota_rpc_example.nim
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/ota_rpc_example.nim
rename to esp-idf-examples/simplewifi_rpc/main/ota_rpc_example.nim
diff --git a/esp-idf-examples/simplewifi-rpc/main/server.nim b/esp-idf-examples/simplewifi_rpc/main/server.nim
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/server.nim
rename to esp-idf-examples/simplewifi_rpc/main/server.nim
diff --git a/esp-idf-examples/simplewifi-rpc/main/wifi_example_main.nim b/esp-idf-examples/simplewifi_rpc/main/wifi_example_main.nim
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/main/wifi_example_main.nim
rename to esp-idf-examples/simplewifi_rpc/main/wifi_example_main.nim
diff --git a/esp-idf-examples/simplewifi-rpc/rpc_cli_test.nim b/esp-idf-examples/simplewifi_rpc/rpc_cli_test.nim
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/rpc_cli_test.nim
rename to esp-idf-examples/simplewifi_rpc/rpc_cli_test.nim
diff --git a/esp-idf-examples/simplewifi-rpc/sdkconfig b/esp-idf-examples/simplewifi_rpc/sdkconfig
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/sdkconfig
rename to esp-idf-examples/simplewifi_rpc/sdkconfig
diff --git a/esp-idf-examples/simplewifi-rpc/sdkconfig.old b/esp-idf-examples/simplewifi_rpc/sdkconfig.old
similarity index 100%
rename from esp-idf-examples/simplewifi-rpc/sdkconfig.old
rename to esp-idf-examples/simplewifi_rpc/sdkconfig.old
diff --git a/nesper.nimble b/nesper.nimble
index aaa379f..59ae109 100644
--- a/nesper.nimble
+++ b/nesper.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version       = "0.7.0"
+version       = "0.7.1"
 author        = "Jaremy Creechley"
 description   = "Nim wrappers for ESP-IDF (ESP32)"
 license       = "Apache-2.0"
@@ -20,39 +20,49 @@ requires "bytesequtils"
 # Tasks
 import os, strutils
 
+proc header(msg: string) =
+  echo "\n\n", msg, "\n"
+proc testExec(cmd: string) =
+  echo "running: ", cmd
+  exec(cmd)
+
 proc general_tests() =
   # Regular tests
+  header "=== Regular Tests ==="
   for dtest in listFiles("tests/"):
     if dtest.splitFile()[1].startsWith("t") and dtest.endsWith(".nim"):
       echo("Testing: " & $dtest)
-      exec "nim c --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
+      testExec "nim c --verbosity:0 --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
 
 proc driver_tests() =
   # Driver tests
+  header "=== Driver Tests ==="
   for dtest in listFiles("tests/driver/"):
     if dtest.splitFile()[1].startsWith("t") and dtest.endsWith(".nim"):
-      echo("Testing: " & $dtest)
-      exec "nim c --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
+      echo("\nTesting: " & $dtest)
+      testExec "nim c --verbosity:0 --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
 
 proc storage_tests() =
-  # Driver tests
+  # Storage tests
+  header "=== Storage Tests ==="
   for dtest in listFiles("tests/storage/"):
     if dtest.splitFile()[1].startsWith("t") and dtest.endsWith(".nim"):
-      echo("Testing: " & $dtest)
-      exec "nim c --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
+      echo("\nTesting: " & $dtest)
+      testExec "nim c --verbosity:0 --compileOnly:on --cincludes:c_headers/mock/ --os:freertos $1" % [dtest]
 
 proc exec_tests() =
   # Exec tests
+  header "=== Exec Tests ==="
   for dtest in listFiles("tests/exec_tests/"):
     if dtest.splitFile()[1].startsWith("t") and dtest.endsWith(".nim"):
-      echo("Testing: " & $dtest)
-      exec "nim c -r --cincludes:$2/tests/c_headers/mock/ $1" % [dtest, getCurrentDir()]
+      echo("\nTesting: " & $dtest)
+      testExec "nim c --verbosity:0 -r --cincludes:$2/tests/c_headers/mock/ $1" % [dtest, getCurrentDir()]
 
 task test, "Runs the test suite":
   general_tests()
   driver_tests()
   storage_tests()
-  # exec_tests()
+  exec_tests()
 
 task test_general, "Runs the test suite":
   general_tests()
diff --git a/src/nesper/build_utils/tasks.nim b/src/nesper/build_utils/tasks.nim
index cfbd7e3..25a8e77 100644
--- a/src/nesper/build_utils/tasks.nim
+++ b/src/nesper/build_utils/tasks.nim
@@ -15,6 +15,7 @@ type
     args: seq[string]
     child_args: seq[string]
     cachedir: string
+    esp_idf_major: string
     esp_idf_version: string
     wifi_args: string
     debug: bool
diff --git a/src/nesper/consts.nim b/src/nesper/consts.nim
index a1c917a..cb9aa9e 100644
--- a/src/nesper/consts.nim
+++ b/src/nesper/consts.nim
@@ -146,9 +146,10 @@ type
 
 type
   ## *< a number that identifies an event with respect to a base
-  esp_event_handler_t* = proc (event_handler_arg: esp_event_base_t;
-                            event_base: esp_event_base_t; event_id: int32;
-                            event_data: pointer) {.cdecl.}
+  esp_event_handler_t* = proc (event_handler_arg: pointer;
+                               event_base: esp_event_base_t;
+                               event_id: int32;
+                               event_data: pointer) {.cdecl.}
 
 type
   bits* = distinct int
diff --git a/src/nesper/esp/net/esp_netif.nim b/src/nesper/esp/net/esp_netif.nim
index f7a8089..b576091 100644
--- a/src/nesper/esp/net/esp_netif.nim
+++ b/src/nesper/esp/net/esp_netif.nim
@@ -35,6 +35,7 @@ else:
   export esp_netif_impl
   export esp_netif_defaults
 
+  export esp_netif_impl
   export esp_wifi_types
   export esp_netif_ip_addr
   export esp_netif_types
diff --git a/src/nesper/ethernet.nim b/src/nesper/ethernet.nim
index fa26b52..501ab67 100644
--- a/src/nesper/ethernet.nim
+++ b/src/nesper/ethernet.nim
@@ -19,8 +19,8 @@ when defined(ESP_IDF_V4_0):
   import nesper/esp/net/tcpip_adapter
   export tcpip_adapter
 else:
-  import nesper/esp/net/esp_netif_types
-  import nesper/esp/net/esp_netif
+  import esp/net/esp_netif_types
+  import esp/net/esp_netif
   export esp_netif_types
   export esp_netif
 
diff --git a/src/nesper/queues.nim b/src/nesper/queues.nim
index d28aa4d..19a52e9 100644
--- a/src/nesper/queues.nim
+++ b/src/nesper/queues.nim
@@ -44,7 +44,7 @@ import esp/queue
 export queue
 
 type
-  XQueue*[N] = pointer
+  XQueue*[N] = distinct pointer
 
 template xQueueCreate*(uxQueueLength, uxItemSize: int): untyped =
   xQueueCreate(UBaseType_t(uxQueueLength), UBaseType_t(uxItemSize))
diff --git a/src/nesper/servers/rpc/router.nim b/src/nesper/servers/rpc/router.nim
index cea4e21..d80c4d6 100644
--- a/src/nesper/servers/rpc/router.nim
+++ b/src/nesper/servers/rpc/router.nim
@@ -130,15 +130,12 @@ proc wrapError*(code: int, msg: string, id: JsonNode,
   result = %* { "code": code, "id": id, "message": escapeJson(msg), "data": data }
   if err != nil:
     result["stacktrace"] = %* err.getStackTraceEntries()
-  echo "Error generated: ", "result: ", result, " id: ", id
 
-template wrapException(body: untyped) =
+template wrapException*(body: untyped) =
   try:
     body
-  except: 
-    let msg = getCurrentExceptionMsg()
-    echo("control server: invalid input: error: ", msg)
-    let resp = rpcInvalidRequest(msg)
+  except Exception as err: 
+    let resp = rpcInvalidRequest(err.msg)
     return resp
 
 
diff --git a/src/nesper/uarts.nim b/src/nesper/uarts.nim
index 1821b2f..6261f15 100644
--- a/src/nesper/uarts.nim
+++ b/src/nesper/uarts.nim
@@ -11,7 +11,7 @@ export uart
 export consts
 export gpios.gpio_num_t
 
-import bytesequtils
+# import bytesequtils
 
 const TAG = "uarts"
 
@@ -112,10 +112,10 @@ proc read*(uart: var Uart;
     result = nb
 
 proc write*(uart: var Uart;
-            data: string): SzBytes {.discardable.} =
+            data: openArray[byte]): SzBytes {.discardable.} =
 
   # // Write data to UART.
-  let bytes_written = uart_write_bytes(uart.port, data, data.len().csize_t)
+  let bytes_written = uart_write_bytes(uart.port, cast[cstring](data[0].unsafeAddr), data.len().csize_t)
   
   result = bytes_written.SzBytes()
 
@@ -123,6 +123,6 @@ proc write*(uart: var Uart;
             data: var seq[byte],
             ): SzBytes {.discardable.} =
   # var buff = data[0..data.len]
-  var str = data.toStrBuf()
-  write(uart, str)
+
+  write(uart, data.toOpenArray(0, data.high()))
 
diff --git a/tests/c_headers/mock/esp32/rom/gpio.h b/tests/c_headers/mock/esp32/rom/gpio.h
new file mode 100644
index 0000000..e69de29
diff --git a/tests/c_headers/mock/soc/gpio_reg.h b/tests/c_headers/mock/soc/gpio_reg.h
new file mode 100644
index 0000000..e69de29
diff --git a/tests/exec_tests/trouter_exec.nim b/tests/exec_tests/trouter_exec.nim
index b13b891..32422c0 100644
--- a/tests/exec_tests/trouter_exec.nim
+++ b/tests/exec_tests/trouter_exec.nim
@@ -40,7 +40,7 @@ assert res2["result"].getInt() == 3
 
 
 ## Test Call 3: incorrect arguments ##
-echo "\n## Call 3 ##"
+echo "\n## Call 3: incorrect arguments ##"
 let err_res = %* {
   "jsonrpc": "2.0",
   "id": 1,
@@ -58,7 +58,8 @@ var call3 = %* {
 }
 var res3 = rt1.route( call3 )
 echo "Result 3: "
-echo res3
+echo res3.pretty()
 
+assert res3["error"].kind == JObject
 delete(res3["error"], "stacktrace")
 assert res3 == err_res