diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5bc61ed6..61d5aef3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,6 @@ set(CORE_SRCS
   cores/esp32/esp32-hal-psram.c
   cores/esp32/esp32-hal-sigmadelta.c
   cores/esp32/esp32-hal-spi.c
-  cores/esp32/esp32-hal-timer.c
   cores/esp32/esp32-hal-tinyusb.c
   cores/esp32/esp32-hal-touch.c
   cores/esp32/esp32-hal-uart.c
diff --git a/cores/esp32/esp32-hal-timer.c b/cores/esp32/esp32-hal-timer.c
deleted file mode 100644
index 8d600f5c..00000000
--- a/cores/esp32/esp32-hal-timer.c
+++ /dev/null
@@ -1,358 +0,0 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "esp32-hal-timer.h"
-#include "freertos/FreeRTOS.h"
-#include "freertos/xtensa_api.h"
-#include "freertos/task.h"
-#include "soc/timer_group_struct.h"
-#include "soc/dport_reg.h"
-#include "esp_attr.h"
-#include "driver/periph_ctrl.h"
-
-#include "esp_system.h"
-#ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
-#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
-#include "esp32/rom/ets_sys.h"
-#include "esp_intr_alloc.h"
-#elif CONFIG_IDF_TARGET_ESP32S2
-#include "esp32s2/rom/ets_sys.h"
-#include "esp_intr_alloc.h"
-#include "soc/periph_defs.h"
-#else 
-#error Target CONFIG_IDF_TARGET is not supported
-#endif
-#else // ESP32 Before IDF 4.0
-#include "rom/ets_sys.h"
-#include "esp_intr.h"
-#endif
-
-#define HWTIMER_LOCK()      portENTER_CRITICAL(timer->lock)
-#define HWTIMER_UNLOCK()    portEXIT_CRITICAL(timer->lock)
-
-typedef struct {
-    union {
-        struct {
-            uint32_t reserved0:   10;
-            uint32_t alarm_en:     1;             /*When set  alarm is enabled*/
-            uint32_t level_int_en: 1;             /*When set  level type interrupt will be generated during alarm*/
-            uint32_t edge_int_en:  1;             /*When set  edge type interrupt will be generated during alarm*/
-            uint32_t divider:     16;             /*Timer clock (T0/1_clk) pre-scale value.*/
-            uint32_t autoreload:   1;             /*When set  timer 0/1 auto-reload at alarming is enabled*/
-            uint32_t increase:     1;             /*When set  timer 0/1 time-base counter increment. When cleared timer 0 time-base counter decrement.*/
-            uint32_t enable:       1;             /*When set  timer 0/1 time-base counter is enabled*/
-        };
-        uint32_t val;
-    } config;
-    uint32_t cnt_low;                             /*Register to store timer 0/1 time-base counter current value lower 32 bits.*/
-    uint32_t cnt_high;                            /*Register to store timer 0 time-base counter current value higher 32 bits.*/
-    uint32_t update;                              /*Write any value will trigger a timer 0 time-base counter value update (timer 0 current value will be stored in registers above)*/
-    uint32_t alarm_low;                           /*Timer 0 time-base counter value lower 32 bits that will trigger the alarm*/
-    uint32_t alarm_high;                          /*Timer 0 time-base counter value higher 32 bits that will trigger the alarm*/
-    uint32_t load_low;                            /*Lower 32 bits of the value that will load into timer 0 time-base counter*/
-    uint32_t load_high;                           /*higher 32 bits of the value that will load into timer 0 time-base counter*/
-    uint32_t reload;                              /*Write any value will trigger timer 0 time-base counter reload*/
-} hw_timer_reg_t;
-
-typedef struct hw_timer_s {
-        hw_timer_reg_t * dev;
-        uint8_t num;
-        uint8_t group;
-        uint8_t timer;
-        portMUX_TYPE lock;
-} hw_timer_t;
-
-static hw_timer_t hw_timer[4] = {
-        {(hw_timer_reg_t *)(DR_REG_TIMERGROUP0_BASE),0,0,0,portMUX_INITIALIZER_UNLOCKED},
-        {(hw_timer_reg_t *)(DR_REG_TIMERGROUP0_BASE + 0x0024),1,0,1,portMUX_INITIALIZER_UNLOCKED},
-        {(hw_timer_reg_t *)(DR_REG_TIMERGROUP0_BASE + 0x1000),2,1,0,portMUX_INITIALIZER_UNLOCKED},
-        {(hw_timer_reg_t *)(DR_REG_TIMERGROUP0_BASE + 0x1024),3,1,1,portMUX_INITIALIZER_UNLOCKED}
-};
-
-typedef void (*voidFuncPtr)(void);
-static voidFuncPtr __timerInterruptHandlers[4] = {0,0,0,0};
-
-void ARDUINO_ISR_ATTR __timerISR(void * arg){
-#if CONFIG_IDF_TARGET_ESP32
-    uint32_t s0 = TIMERG0.int_st_timers.val;
-    uint32_t s1 = TIMERG1.int_st_timers.val;
-    TIMERG0.int_clr_timers.val = s0;
-    TIMERG1.int_clr_timers.val = s1;
-#else
-    uint32_t s0 = TIMERG0.int_st.val;
-    uint32_t s1 = TIMERG1.int_st.val;
-    TIMERG0.int_clr.val = s0;
-    TIMERG1.int_clr.val = s1;
-#endif
-    uint8_t status = (s1 & 3) << 2 | (s0 & 3);
-    uint8_t i = 4;
-    //restart the timers that should autoreload
-    while(i--){
-        hw_timer_reg_t * dev = hw_timer[i].dev;
-        if((status & (1 << i)) && dev->config.autoreload){
-            dev->config.alarm_en = 1;
-        }
-    }
-    i = 4;
-    //call callbacks
-    while(i--){
-        if(__timerInterruptHandlers[i] && (status & (1 << i))){
-            __timerInterruptHandlers[i]();
-        }
-    }
-}
-
-uint64_t timerRead(hw_timer_t *timer){
-    timer->dev->update = 1;
-    uint64_t h = timer->dev->cnt_high;
-    uint64_t l = timer->dev->cnt_low;
-    return (h << 32) | l;
-}
-
-uint64_t timerAlarmRead(hw_timer_t *timer){
-    uint64_t h = timer->dev->alarm_high;
-    uint64_t l = timer->dev->alarm_low;
-    return (h << 32) | l;
-}
-
-void timerWrite(hw_timer_t *timer, uint64_t val){
-    timer->dev->load_high = (uint32_t) (val >> 32);
-    timer->dev->load_low = (uint32_t) (val);
-    timer->dev->reload = 1;
-}
-
-void timerAlarmWrite(hw_timer_t *timer, uint64_t alarm_value, bool autoreload){
-    timer->dev->alarm_high = (uint32_t) (alarm_value >> 32);
-    timer->dev->alarm_low = (uint32_t) alarm_value;
-    timer->dev->config.autoreload = autoreload;
-}
-
-void timerSetConfig(hw_timer_t *timer, uint32_t config){
-    timer->dev->config.val = config;
-}
-
-uint32_t timerGetConfig(hw_timer_t *timer){
-    return timer->dev->config.val;
-}
-
-void timerSetCountUp(hw_timer_t *timer, bool countUp){
-    timer->dev->config.increase = countUp;
-}
-
-bool timerGetCountUp(hw_timer_t *timer){
-    return timer->dev->config.increase;
-}
-
-void timerSetAutoReload(hw_timer_t *timer, bool autoreload){
-    timer->dev->config.autoreload = autoreload;
-}
-
-bool timerGetAutoReload(hw_timer_t *timer){
-    return timer->dev->config.autoreload;
-}
-
-void timerSetDivider(hw_timer_t *timer, uint16_t divider){//2 to 65536
-    if(!divider){
-        divider = 0xFFFF;
-    } else if(divider == 1){
-        divider = 2;
-    }
-    int timer_en = timer->dev->config.enable;
-    timer->dev->config.enable = 0;
-    timer->dev->config.divider = divider;
-    timer->dev->config.enable = timer_en;
-}
-
-uint16_t timerGetDivider(hw_timer_t *timer){
-    return timer->dev->config.divider;
-}
-
-void timerStart(hw_timer_t *timer){
-    timer->dev->config.enable = 1;
-}
-
-void timerStop(hw_timer_t *timer){
-    timer->dev->config.enable = 0;
-}
-
-void timerRestart(hw_timer_t *timer){
-    timer->dev->config.enable = 0;
-    timer->dev->reload = 1;
-    timer->dev->config.enable = 1;
-}
-
-bool timerStarted(hw_timer_t *timer){
-    return timer->dev->config.enable;
-}
-
-void timerAlarmEnable(hw_timer_t *timer){
-    timer->dev->config.alarm_en = 1;
-}
-
-void timerAlarmDisable(hw_timer_t *timer){
-    timer->dev->config.alarm_en = 0;
-}
-
-bool timerAlarmEnabled(hw_timer_t *timer){
-    return timer->dev->config.alarm_en;
-}
-
-static void _on_apb_change(void * arg, apb_change_ev_t ev_type, uint32_t old_apb, uint32_t new_apb){
-    hw_timer_t * timer = (hw_timer_t *)arg;
-    if(ev_type == APB_BEFORE_CHANGE){
-        timer->dev->config.enable = 0;
-    } else {
-        old_apb /= 1000000;
-        new_apb /= 1000000;
-        timer->dev->config.divider = (new_apb * timer->dev->config.divider) / old_apb;
-        timer->dev->config.enable = 1;
-    }
-}
-
-hw_timer_t * timerBegin(uint8_t num, uint16_t divider, bool countUp){
-    if(num > 3){
-        return NULL;
-    }
-    hw_timer_t * timer = &hw_timer[num];
-    if(timer->group) {
-    	periph_module_enable(PERIPH_TIMG1_MODULE);
-    } else {
-    	periph_module_enable(PERIPH_TIMG0_MODULE);
-    }
-    timer->dev->config.enable = 0;
-    if(timer->group) {
-        TIMERG1.int_ena.val &= ~BIT(timer->timer);
-#if CONFIG_IDF_TARGET_ESP32
-            TIMERG1.int_clr_timers.val |= BIT(timer->timer);
-#else
-            TIMERG1.int_clr.val = BIT(timer->timer);
-#endif
-    } else {
-        TIMERG0.int_ena.val &= ~BIT(timer->timer);
-#if CONFIG_IDF_TARGET_ESP32
-            TIMERG0.int_clr_timers.val |= BIT(timer->timer);
-#else
-            TIMERG0.int_clr.val = BIT(timer->timer);
-#endif
-    }
-#ifdef TIMER_GROUP_SUPPORTS_XTAL_CLOCK
-    timer->dev->config.use_xtal = 0;
-#endif
-    timerSetDivider(timer, divider);
-    timerSetCountUp(timer, countUp);
-    timerSetAutoReload(timer, false);
-    timerAttachInterrupt(timer, NULL, false);
-    timerWrite(timer, 0);
-    timer->dev->config.enable = 1;
-    addApbChangeCallback(timer, _on_apb_change);
-    return timer;
-}
-
-void timerEnd(hw_timer_t *timer){
-    timer->dev->config.enable = 0;
-    timerAttachInterrupt(timer, NULL, false);
-    removeApbChangeCallback(timer, _on_apb_change);
-}
-
-void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
-	// EDGE DOES NOT WORK CURRENTLY
-	edge = false;
-
-    static bool initialized = false;
-    static intr_handle_t intr_handle = NULL;
-    if(intr_handle){
-        esp_intr_disable(intr_handle);
-    }
-    if(fn == NULL){
-        timer->dev->config.level_int_en = 0;
-        timer->dev->config.edge_int_en = 0;
-        timer->dev->config.alarm_en = 0;
-        if(timer->num & 2){
-            TIMERG1.int_ena.val &= ~BIT(timer->timer);
-#if CONFIG_IDF_TARGET_ESP32
-            TIMERG1.int_clr_timers.val |= BIT(timer->timer);
-#else
-            TIMERG1.int_clr.val = BIT(timer->timer);
-#endif
-        } else {
-            TIMERG0.int_ena.val &= ~BIT(timer->timer);
-#if CONFIG_IDF_TARGET_ESP32
-            TIMERG0.int_clr_timers.val |= BIT(timer->timer);
-#else
-            TIMERG0.int_clr.val = BIT(timer->timer);
-#endif
-        }
-        __timerInterruptHandlers[timer->num] = NULL;
-    } else {
-        __timerInterruptHandlers[timer->num] = fn;
-        timer->dev->config.level_int_en = edge?0:1;//When set, an alarm will generate a level type interrupt.
-        timer->dev->config.edge_int_en = edge?1:0;//When set, an alarm will generate an edge type interrupt.
-        int intr_source = 0;
-        if(!edge){
-            if(timer->group){
-                intr_source = ETS_TG1_T0_LEVEL_INTR_SOURCE + timer->timer;
-            } else {
-                intr_source = ETS_TG0_T0_LEVEL_INTR_SOURCE + timer->timer;
-            }
-        } else {
-            if(timer->group){
-                intr_source = ETS_TG1_T0_EDGE_INTR_SOURCE + timer->timer;
-            } else {
-                intr_source = ETS_TG0_T0_EDGE_INTR_SOURCE + timer->timer;
-            }
-        }
-        if(!initialized){
-            initialized = true;
-            esp_intr_alloc(intr_source, (int)(ARDUINO_ISR_FLAG|ESP_INTR_FLAG_LOWMED), __timerISR, NULL, &intr_handle);
-        } else {
-            intr_matrix_set(esp_intr_get_cpu(intr_handle), intr_source, esp_intr_get_intno(intr_handle));
-        }
-        if(timer->group){
-            TIMERG1.int_ena.val |= BIT(timer->timer);
-        } else {
-            TIMERG0.int_ena.val |= BIT(timer->timer);
-        }
-    }
-    if(intr_handle){
-        esp_intr_enable(intr_handle);
-    }
-}
-
-void timerDetachInterrupt(hw_timer_t *timer){
-    timerAttachInterrupt(timer, NULL, false);
-}
-
-uint64_t timerReadMicros(hw_timer_t *timer){
-    uint64_t timer_val = timerRead(timer);
-    uint16_t div = timerGetDivider(timer);
-    return timer_val * div / (getApbFrequency() / 1000000);
-}
-
-double timerReadSeconds(hw_timer_t *timer){
-    uint64_t timer_val = timerRead(timer);
-    uint16_t div = timerGetDivider(timer);
-    return (double)timer_val * div / getApbFrequency();
-}
-
-uint64_t timerAlarmReadMicros(hw_timer_t *timer){
-    uint64_t timer_val = timerAlarmRead(timer);
-    uint16_t div = timerGetDivider(timer);
-    return timer_val * div / (getApbFrequency() / 1000000);
-}
-
-double timerAlarmReadSeconds(hw_timer_t *timer){
-    uint64_t timer_val = timerAlarmRead(timer);
-    uint16_t div = timerGetDivider(timer);
-    return (double)timer_val * div / getApbFrequency();
-}
diff --git a/cores/esp32/esp32-hal-timer.h b/cores/esp32/esp32-hal-timer.h
deleted file mode 100644
index 7624fc5a..00000000
--- a/cores/esp32/esp32-hal-timer.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- Arduino.h - Main include file for the Arduino SDK
- Copyright (c) 2005-2013 Arduino Team.  All right reserved.
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef MAIN_ESP32_HAL_TIMER_H_
-#define MAIN_ESP32_HAL_TIMER_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "esp32-hal.h"
-#include "freertos/FreeRTOS.h"
-
-struct hw_timer_s;
-typedef struct hw_timer_s hw_timer_t;
-
-hw_timer_t * timerBegin(uint8_t timer, uint16_t divider, bool countUp);
-void timerEnd(hw_timer_t *timer);
-
-void timerSetConfig(hw_timer_t *timer, uint32_t config);
-uint32_t timerGetConfig(hw_timer_t *timer);
-
-void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge);
-void timerDetachInterrupt(hw_timer_t *timer);
-
-void timerStart(hw_timer_t *timer);
-void timerStop(hw_timer_t *timer);
-void timerRestart(hw_timer_t *timer);
-void timerWrite(hw_timer_t *timer, uint64_t val);
-void timerSetDivider(hw_timer_t *timer, uint16_t divider);
-void timerSetCountUp(hw_timer_t *timer, bool countUp);
-void timerSetAutoReload(hw_timer_t *timer, bool autoreload);
-
-bool timerStarted(hw_timer_t *timer);
-uint64_t timerRead(hw_timer_t *timer);
-uint64_t timerReadMicros(hw_timer_t *timer);
-double timerReadSeconds(hw_timer_t *timer);
-uint16_t timerGetDivider(hw_timer_t *timer);
-bool timerGetCountUp(hw_timer_t *timer);
-bool timerGetAutoReload(hw_timer_t *timer);
-
-void timerAlarmEnable(hw_timer_t *timer);
-void timerAlarmDisable(hw_timer_t *timer);
-void timerAlarmWrite(hw_timer_t *timer, uint64_t interruptAt, bool autoreload);
-
-bool timerAlarmEnabled(hw_timer_t *timer);
-uint64_t timerAlarmRead(hw_timer_t *timer);
-uint64_t timerAlarmReadMicros(hw_timer_t *timer);
-double timerAlarmReadSeconds(hw_timer_t *timer);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* MAIN_ESP32_HAL_TIMER_H_ */
diff --git a/cores/esp32/esp32-hal.h b/cores/esp32/esp32-hal.h
index b585dfb0..12f2306a 100644
--- a/cores/esp32/esp32-hal.h
+++ b/cores/esp32/esp32-hal.h
@@ -72,7 +72,6 @@ void yield(void);
 #include "esp32-hal-ledc.h"
 #include "esp32-hal-rmt.h"
 #include "esp32-hal-sigmadelta.h"
-#include "esp32-hal-timer.h"
 #include "esp32-hal-psram.h"
 #include "esp32-hal-cpu.h"