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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)+ U% |6 Q$ S0 t; S6 y( U
- #include <ESP8266HTTPClient.h>' P0 n* D$ L% z/ m* B) @, T
- #include <ESP8266WiFi.h>
! H9 K+ M9 H' S1 j/ d - #include <ESP8266WiFiMulti.h>
6 O5 U, M: i: ?% o - #include <ESP8266WebServer.h>
6 n, X' I' v; v. y$ C - #include <arduino.h>9 ]. I3 h6 k, Z9 q; C# X) I/ U
- ESP8266WiFiMulti WiFiMulti;) q* \' Q# [$ f
- ESP8266WebServer server(80);7 o9 U0 l+ j+ {$ T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
f9 v% o2 @" k* k3 p' a+ o - ADC_MODE(ADC_VCC);
% [& q0 o/ y' L& y7 V - void setup() {, O D6 Q, H0 e0 Y+ ~
- Serial.begin(115200);, ]- A7 c" L1 R9 y; ~* C* x$ F
- Serial.print("\r\n\n");
5 L4 Y, h8 H! |( Y - pinMode(2,OUTPUT);0 t" T, N1 r0 S. ?& f
- // WIFI0 {1 g: v/ s5 q
- WiFi.mode(WIFI_STA);
+ L! \* _0 x. ]: U! a% H* ? - WiFi.hostname("Sparkle");& `9 E2 H* ^& E2 ^+ L, Q
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ t/ t Z: R: t& T7 D, t/ R - int tryNum = 15;
7 _7 K: y1 H1 i9 G1 o - Serial.print("Connect WiFi");
: T$ r/ f+ }# J( b9 c {/ H4 p - while (WiFiMulti.run() != WL_CONNECTED) {% M8 \! f! A- m, y' p- ~; O- P
- digitalWrite(2,0);) ?& ?$ `" C" U5 p
- delay(200);1 L( H/ w- {1 T& d0 R9 E* [/ F
- digitalWrite(2,1);3 ]: ~ Y& i% }/ }/ V; D- h: V; w
- delay(300); n' n8 @9 H# S; M" e0 f
- Serial.print(".");
9 M! G9 J* U3 B - tryNum--;
6 m& Q. G+ e8 S0 [" o+ s - if (tryNum == 0) {
4 t( @" ^8 E7 B3 G, K; h- f - // 1min
9 h0 {: l& Z8 |* t8 `' F4 z% U - // ESP.deepSleep(60e6);
" o& a+ |0 Y% F' }& m- _0 A - ESP.deepSleep(0);/ |' F; z0 B! u4 t
- }
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- Serial.print("\r\n");
+ e) `( m" n A2 i; v" I8 y7 h# t7 { - digitalWrite(2,1);
* C. s) M7 u) F/ U( \, E' E8 q - Serial.print("IP address : ");7 Z% Q5 g9 ^( I3 @& _6 h; i
- Serial.println(WiFi.localIP());/ S2 ?* }7 A' t/ f2 o$ `7 | T
- server.on("/", HTTP_GET, [](){
* Y' i+ ~/ h- p- }2 E! d - server.sendHeader("Connection", "close");) A* K4 E) q, ?, Z2 P8 b( \7 v9 }
- server.send(200, "text/html", serverIndex);
. j3 b( b* a1 L% Z - });
h5 F; X3 Z$ H9 r8 F. |0 z# X - server.on("/update", HTTP_POST, [](){3 G" ?" ^( Y$ L' D
- server.sendHeader("Connection", "close");( E1 f6 z( i6 m7 m- y5 X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 M3 e G4 U' o: Q7 H; A3 O0 Y - ESP.restart();
9 P \ Z( b6 L - },[](){
* T) z; \; v) }- u$ M& r' m- { - HTTPUpload& upload = server.upload();
+ G% q& B# W% W" k2 X3 N+ L/ N) } - if(upload.status == UPLOAD_FILE_START){
$ I6 @2 N* f8 T3 ]2 T' s - Serial.setDebugOutput(true);
, _+ P" n% l a. u6 X - Serial.printf("Update: %s\n", upload.filename.c_str()); n+ l y2 I% Z S2 z7 D8 t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- f) V, W6 P/ M
- if(!Update.begin(maxSketchSpace)){
Q8 Z% ~) I- C. ?7 g - Update.printError(Serial);8 d }' D! r9 z" v3 E2 S
- }- ]% f3 |: Y, n) ^
- } else if(upload.status == UPLOAD_FILE_WRITE){
2 Q- P, n- c; U# _ ?3 Y$ `7 Z; ` - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- Y9 y, B$ r9 r& \
- Update.printError(Serial);
0 u' v$ z3 h6 {7 m- m - }, X* p% {1 o& c
- } else if(upload.status == UPLOAD_FILE_END){
0 \ r1 p, {. _- i- V; e& E* ^# e8 a - if(Update.end(true)){
) x/ [) d7 B2 L$ G( b: q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; s7 H' e3 n5 T - } else {- I4 a$ [6 g+ }: Q/ K& _
- Update.printError(Serial);8 ]1 L0 I3 u! H8 A2 w6 l# C
- }& N1 m6 |9 u9 }/ l. c' ~$ R
- Serial.setDebugOutput(false);( |6 B* N# O1 O; X6 K0 {
- }# @7 n D3 t% q1 n
- yield();
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- , j( N' \0 P6 v) L& _: _& {
- digitalWrite(2,0);
, f0 _# x: ^7 p( ?: C- x5 R - mainAction();0 o, N3 `& L* ~' U2 z* g) g
- if (digitalRead(0)){
; M4 t9 I" M; a) c - ESP.deepSleep(0);
! m' ?6 }& R: {2 w& Y% u - } else {
3 t5 ]/ P% g% @) X$ Q - server.begin();
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- }
" O" v7 C6 b8 n9 n7 Q t6 w% Y6 S - void loop() {9 ~! @6 G. ~4 U
- server.handleClient();
, s$ U! i% k8 Q- G& ? - delay(1);
: c6 V9 {, w# ^( d- r3 t1 I2 O4 t - }
) w$ D- D3 O7 m" s) d* ^ - String doGet(String url){1 S( T5 R! J" Z2 o$ _3 M4 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 g; w) Y7 L/ _' V5 ? - HTTPClient http;! y7 @2 x6 q% _
- Serial.println("[HTTP] begin...");
+ a* C5 K! K6 d) B) W5 x7 i# t4 M - if (url.startsWith("https")) {
" W0 e5 a1 H6 _6 [5 o3 b0 L+ H - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 S1 F- W; t0 a/ F% g9 e: u" H - } else {
) f2 E1 ?: [9 u8 `# Q( y - http.begin(url);
f; ]' D6 k2 r9 y& |) C8 s0 L - }
+ f: |$ a: E' C8 `, z# j: K - Serial.println("[HTTP] GET...");
3 [7 n3 j& B" i - int httpCode = http.GET();
2 P: ^( ` `- w( q: H% M - if (httpCode > 0) {
/ v% p0 Y# r3 I6 N; I - Serial.printf("[HTTP] code: %d\n", httpCode);1 A1 d8 Y8 z+ c6 `
- if (httpCode == HTTP_CODE_OK) {
0 k( _0 a4 a: w' k' C/ U - String payload = http.getString();
% L1 J- `4 s- W+ t - Serial.println(payload);. G& A1 H |" ~( l8 p$ _
- Serial.print("\r\n");) ?1 t, y; @2 V+ N
- return payload;
0 C, M* C* X ~! j: Q3 h - }
^1 i5 ^5 i, N* x1 f- f - } else {
4 g" U; H7 c" k, a5 u - Serial.printf("[HTTP] GET... failed, error: %s\n",
" _# _, a4 g* ^# _. V - http.errorToString(httpCode).c_str());
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- http.end();
! E+ b0 u- H( i& {% U - return "";/ u" }$ o/ H- ?9 \% B* j& M( M
- }
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- void mainAction() {
% ]9 \( ~% O$ Q1 J4 r - // 发送请求' x. y6 R& ? p! \; W
- doGet("http://google.cn");
1 N: \( T) U3 O% ]9 O/ Z - }
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