diff --git a/src/modules/nRF24/nRF24.cpp b/src/modules/nRF24/nRF24.cpp
index 135e75af..0133b732 100644
--- a/src/modules/nRF24/nRF24.cpp
+++ b/src/modules/nRF24/nRF24.cpp
@@ -16,7 +16,7 @@ int16_t nRF24::begin(int16_t freq, int16_t dataRate, int8_t power, uint8_t addrW
   Module::digitalWrite(_mod->getRst(), LOW);
 
   // wait for minimum power-on reset duration
-  delay(100);
+  Module::delay(100);
 
   // check SPI connection
   int16_t val = _mod->SPIgetRegValue(NRF24_REG_SETUP_AW);
@@ -69,7 +69,7 @@ int16_t nRF24::standby() {
   // make sure carrier output is disabled
   _mod->SPIsetRegValue(NRF24_REG_RF_SETUP, NRF24_CONT_WAVE_OFF, 7, 7);
   _mod->SPIsetRegValue(NRF24_REG_RF_SETUP, NRF24_PLL_LOCK_OFF, 4, 4);
-  digitalWrite(_mod->getRst(), LOW);
+  Module::digitalWrite(_mod->getRst(), LOW);
 
   // use standby-1 mode
   return(_mod->SPIsetRegValue(NRF24_REG_CONFIG, NRF24_POWER_UP, 1, 1));
@@ -81,9 +81,9 @@ int16_t nRF24::transmit(uint8_t* data, size_t len, uint8_t addr) {
   RADIOLIB_ASSERT(state);
 
   // wait until transmission is finished
-  uint32_t start = micros();
-  while(digitalRead(_mod->getIrq())) {
-    yield();
+  uint32_t start = Module::micros();
+  while(Module::digitalRead(_mod->getIrq())) {
+    Module::yield();
 
     // check maximum number of retransmits
     if(getStatus(NRF24_MAX_RT)) {
@@ -93,7 +93,7 @@ int16_t nRF24::transmit(uint8_t* data, size_t len, uint8_t addr) {
     }
 
     // check timeout: 15 retries * 4ms (max Tx time as per datasheet)
-    if(micros() - start >= 60000) {
+    if(Module::micros() - start >= 60000) {
       standby();
       clearIRQ();
       return(ERR_TX_TIMEOUT);
@@ -112,12 +112,12 @@ int16_t nRF24::receive(uint8_t* data, size_t len) {
   RADIOLIB_ASSERT(state);
 
   // wait for Rx_DataReady or timeout
-  uint32_t start = micros();
-  while(digitalRead(_mod->getIrq())) {
-    yield();
+  uint32_t start = Module::micros();
+  while(Module::digitalRead(_mod->getIrq())) {
+    Module::yield();
 
     // check timeout: 15 retries * 4ms (max Tx time as per datasheet)
-    if(micros() - start >= 60000) {
+    if(Module::micros() - start >= 60000) {
       standby();
       clearIRQ();
       return(ERR_RX_TIMEOUT);
@@ -139,7 +139,7 @@ int16_t nRF24::transmitDirect(uint32_t frf) {
   int16_t state = _mod->SPIsetRegValue(NRF24_REG_CONFIG, NRF24_PTX, 0, 0);
   state |= _mod->SPIsetRegValue(NRF24_REG_RF_SETUP, NRF24_CONT_WAVE_ON, 7, 7);
   state |= _mod->SPIsetRegValue(NRF24_REG_RF_SETUP, NRF24_PLL_LOCK_ON, 4, 4);
-  digitalWrite(_mod->getRst(), HIGH);
+  Module::digitalWrite(_mod->getRst(), HIGH);
   return(state);
 }
 
@@ -150,7 +150,7 @@ int16_t nRF24::receiveDirect() {
 }
 
 void nRF24::setIrqAction(void (*func)(void)) {
-  attachInterrupt(RADIOLIB_DIGITAL_PIN_TO_INTERRUPT(_mod->getIrq()), func, FALLING);
+  Module::attachInterrupt(RADIOLIB_DIGITAL_PIN_TO_INTERRUPT(_mod->getIrq()), func, FALLING);
 }
 
 int16_t nRF24::startTransmit(uint8_t* data, size_t len, uint8_t addr) {
@@ -186,9 +186,9 @@ int16_t nRF24::startTransmit(uint8_t* data, size_t len, uint8_t addr) {
   SPIwriteTxPayload(data, len);
 
   // CE high to start transmitting
-  digitalWrite(_mod->getRst(), HIGH);
-  delay(1);
-  digitalWrite(_mod->getRst(), LOW);
+  Module::digitalWrite(_mod->getRst(), HIGH);
+  Module::delay(1);
+  Module::digitalWrite(_mod->getRst(), LOW);
 
   return(state);
 }
@@ -211,10 +211,10 @@ int16_t nRF24::startReceive() {
   SPItransfer(NRF24_CMD_FLUSH_RX);
 
   // CE high to start receiving
-  digitalWrite(_mod->getRst(), HIGH);
+  Module::digitalWrite(_mod->getRst(), HIGH);
 
   // wait to enter Rx state
-  delay(1);
+  Module::delay(1);
 
   return(state);
 }
@@ -539,7 +539,7 @@ int16_t nRF24::config() {
 
   // power up
   _mod->SPIsetRegValue(NRF24_REG_CONFIG, NRF24_POWER_UP, 1, 1);
-  delay(5);
+  Module::delay(5);
 
   return(state);
 }
@@ -558,7 +558,7 @@ void nRF24::SPItransfer(uint8_t cmd, bool write, uint8_t* dataOut, uint8_t* data
   SPISettings spiSettings = _mod->getSpiSettings();
 
   // start transfer
-  digitalWrite(_mod->getCs(), LOW);
+  Module::digitalWrite(_mod->getCs(), LOW);
   spi->beginTransaction(spiSettings);
 
   // send command
@@ -577,7 +577,7 @@ void nRF24::SPItransfer(uint8_t cmd, bool write, uint8_t* dataOut, uint8_t* data
 
   // stop transfer
   spi->endTransaction();
-  digitalWrite(_mod->getCs(), HIGH);
+  Module::digitalWrite(_mod->getCs(), HIGH);
 }
 
 #endif