BlueToast App
One of the few free Bluetooth tools on iOS, built specifically for talking to an ESP32 over Bluetooth. It comes with a full step-by-step tutorial, so even people with zero hardware background can build a little project of their own.
'%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='%23FFD23F'%20fill-opacity='.8'/%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='url(%23washi-yellow-p)'%20fill-opacity='1'/%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='url(%23washi-yellow-sheen)'/%3e%3cpath%20d='M0%20.6H240'%20stroke='%23fff'%20stroke-opacity='.45'%20stroke-width='1.2'/%3e%3cpath%20d='M0%2059.4H240'%20stroke='%23F2B91A'%20stroke-opacity='.35'%20stroke-width='1.2'/%3e%3cpath%20d='M5.0%200.0%20L234.8%200%20L232.1%202.2%20L235.0%204.4%20L232.1%206.5%20L235.8%208.5%20L231.9%2010.5%20L237.0%2012.5%20L232.1%2014.3%20L234.6%2016.1%20L231.8%2017.8%20L237.5%2019.5%20L231.6%2022.1%20L234.9%2024.6%20L229.8%2026.8%20L236.6%2028.9%20L230.5%2030.7%20L235.2%2032.6%20L230.5%2034.3%20L234.5%2036.1%20L230.2%2038.3%20L235.3%2040.5%20L230.9%2043.0%20L235.3%2045.6%20L232.1%2047.6%20L235.0%2049.6%20L231.4%2051.2%20L236.8%2052.9%20L230.1%2054.8%20L235.6%2056.8%20L231.7%2059.4%20L236.6%2060.0%20L3.1%2060.0%20L9.8%2059.2%20L4.8%2057.4%20L7.6%2055.0%20L4.9%2052.5%20L8.5%2050.4%20L3.8%2048.3%20L10.3%2046.3%20L5.1%2044.2%20L8.0%2041.8%20L4.4%2039.4%20L7.8%2036.8%20L4.0%2034.3%20L7.6%2032.4%20L3.7%2030.4%20L9.7%2028.0%20L2.5%2025.5%20L8.2%2023.8%20L4.8%2022.2%20L7.7%2019.8%20L3.7%2017.4%20L7.5%2015.4%20L4.8%2013.5%20L9.0%2011.4%20L3.1%209.3%20L8.1%206.9%20L4.1%204.5%20L9.6%202.2Z'%20fill='none'%20stroke='%23fff'%20stroke-opacity='.35'%20stroke-width='1.6'/%3e%3c/g%3e%3c/svg%3e)
'%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='%232EC4B6'%20fill-opacity='.8'/%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='url(%23washi-mint-p)'%20fill-opacity='.75'/%3e%3crect%20x='0'%20y='0'%20width='240'%20height='60'%20fill='url(%23washi-mint-sheen)'/%3e%3cpath%20d='M0%20.6H240'%20stroke='%23fff'%20stroke-opacity='.45'%20stroke-width='1.2'/%3e%3cpath%20d='M0%2059.4H240'%20stroke='%231FA396'%20stroke-opacity='.35'%20stroke-width='1.2'/%3e%3cpath%20d='M4.8%200.0%20L236.2%200%20L231.2%202.2%20L235.1%204.4%20L230.1%206.8%20L236.5%209.2%20L232.0%2011.3%20L235.5%2013.4%20L231.8%2016.0%20L237.5%2018.6%20L232.4%2021.0%20L236.3%2023.5%20L231.4%2025.4%20L236.5%2027.2%20L231.1%2029.5%20L236.5%2031.8%20L232.1%2034.2%20L237.4%2036.5%20L229.6%2038.8%20L234.6%2041.0%20L232.5%2042.7%20L237.3%2044.4%20L231.6%2046.4%20L237.2%2048.4%20L231.6%2050.5%20L235.8%2052.7%20L232.3%2054.9%20L237.0%2057.0%20L232.0%2058.9%20L235.2%2060.0%20L4.8%2060.0%20L8.4%2060.0%20L3.6%2060.0%20L10.4%2057.9%20L4.8%2055.9%20L7.8%2054.2%20L2.9%2052.4%20L8.8%2049.9%20L3.1%2047.3%20L10.3%2045.4%20L3.4%2043.4%20L9.7%2040.9%20L4.1%2038.4%20L7.6%2035.9%20L4.6%2033.5%20L9.8%2031.3%20L5.3%2029.1%20L9.7%2026.8%20L3.9%2024.5%20L9.4%2022.1%20L5.0%2019.6%20L8.9%2017.4%20L3.0%2015.1%20L10.5%2013.1%20L4.8%2011.0%20L10.0%209.1%20L5.5%207.3%20L9.4%205.6%20L3.7%203.9%20L9.1%202.0Z'%20fill='none'%20stroke='%23fff'%20stroke-opacity='.35'%20stroke-width='1.6'/%3e%3c/g%3e%3c/svg%3e)
Highlights
- A free ESP32 Bluetooth development tool for iOS users
- Paired with a detailed tutorial that lowers the barrier to hardware projects and helps more makers get started
Challenges and How I Handled Them
- Adjusting how the ESP32 handles Bluetooth to follow Apple’s security rules, so the connection stays stable and the experience stays smooth
Small Wins
- Peaked at #26 in the App Store’s Developer Tools category
- Helped 30+ users build their own Bluetooth projects
- Teachers have adopted the tutorial as part of their course materials
- The tutorial got great feedback from the community and helped show that ESP32 development on iOS is doable
