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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)
& y* @& F6 m- E6 Z2 v% R- #include <ESP8266HTTPClient.h>( u; J/ {% O7 n9 c- A
- #include <ESP8266WiFi.h>- ]7 D3 Y* n1 |/ Y# [( v- v9 w8 B
- #include <ESP8266WiFiMulti.h>$ I* }% C; Y0 l! q m6 @2 A
- #include <ESP8266WebServer.h>
; F |+ N' h& O- b3 ^( S/ k - #include <arduino.h>
7 j4 r( ]5 M! n! a& ? - ESP8266WiFiMulti WiFiMulti;
8 k1 v+ y& a: w5 g7 ?; E2 h4 Y) H+ r - ESP8266WebServer server(80);: G4 `) d6 N% \1 M
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) E. w0 X& j7 } t4 D7 c8 f) _) s- w - ADC_MODE(ADC_VCC);# Y2 g. B, E( c0 Z
- void setup() {# L% r1 A6 A8 M
- Serial.begin(115200);
7 ?6 S2 H. \% R# v* u# k - Serial.print("\r\n\n");3 A t3 e! a. U5 W) d
- pinMode(2,OUTPUT);$ T" r9 u( R+ a: M" y. k3 O
- // WIFI6 C Q% G- s" w8 |( R7 w) N: O
- WiFi.mode(WIFI_STA);; B0 W) L+ z1 \( l
- WiFi.hostname("Sparkle");/ k9 v. ^- d* K) t) `2 S
- WiFiMulti.addAP("wifi ssid", "wifi password");2 e, [$ h' j5 f
- int tryNum = 15;
9 g+ ~5 Z* {. w, R" r; G. ? - Serial.print("Connect WiFi");3 G: b7 ~) O9 t5 b1 n5 P
- while (WiFiMulti.run() != WL_CONNECTED) {
' @4 }+ t+ J+ f) X9 T( A) Q - digitalWrite(2,0);- z3 c6 c) u( K
- delay(200);
; z; P9 q5 E, j! \$ Q# h H+ w - digitalWrite(2,1);: t4 m$ H* O- ~2 p4 @
- delay(300);- Y& e8 K; h& {2 p: t5 j8 }+ y3 ~
- Serial.print(".");
1 t7 O5 U% A7 j- | - tryNum--;
. _% Q( Q h5 x( U - if (tryNum == 0) {
; D7 Z$ G$ ~5 E6 d1 x+ n2 k - // 1min; H- i8 a& Y! H3 L$ W- E
- // ESP.deepSleep(60e6);
9 |4 H, B5 ^3 L8 W9 ~1 }! j - ESP.deepSleep(0);
1 f; U3 t& F& j" s% C) b - }
7 V! Z2 {& C% Y! ?$ b- } - }
2 S+ d/ ]! ^0 |1 y( s0 R - Serial.print("\r\n");' n/ r* j$ `) h" e3 q" |* F, b
- digitalWrite(2,1);
6 A9 d1 s6 u0 T( Q3 W - Serial.print("IP address : ");
& j# r3 g9 d; P0 M - Serial.println(WiFi.localIP());% s7 I0 C* G, y6 k1 A' s
- server.on("/", HTTP_GET, [](){
7 Y! Q6 b; \( F. l/ m3 G - server.sendHeader("Connection", "close");; W2 s+ I1 c: |' b8 O8 W4 c$ i
- server.send(200, "text/html", serverIndex);0 H- S7 H! g, z- |$ D6 ]
- });
' q8 I$ H- c. j1 Z0 q" n! q - server.on("/update", HTTP_POST, [](){4 k& L0 O; [6 p( L0 F. E( f5 r
- server.sendHeader("Connection", "close");1 h' W, l. J7 S0 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: g. h/ W( {) f - ESP.restart();
! [7 \! R$ o' Z s - },[](){
& D% ~4 j5 i, y5 [" ^6 {; ^ - HTTPUpload& upload = server.upload();2 e& U7 |# o7 K* ~9 M D
- if(upload.status == UPLOAD_FILE_START){
/ C$ L* e4 U9 g( j5 M @ - Serial.setDebugOutput(true);
2 }9 p4 R; `/ I$ R - Serial.printf("Update: %s\n", upload.filename.c_str());* P. z* z, ?3 a; R: C# L) @5 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! ?, N/ |+ I9 A3 j! i6 \- T - if(!Update.begin(maxSketchSpace)){
* ^* i# \* a; M/ N1 E, G8 \6 y - Update.printError(Serial);
) f8 ^2 x% n+ J - }" W$ M( e3 e: @! m& I
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 `% U: r3 s/ e4 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 \" P4 h/ l4 p' P5 B9 g% F `; O
- Update.printError(Serial);
+ k; D5 D3 _ Y3 p3 o7 _ - }
* v+ `- X+ c5 }) ` g. `' z7 x# V - } else if(upload.status == UPLOAD_FILE_END){2 t7 V5 @2 N4 d
- if(Update.end(true)){
2 |% N$ L$ d' I' u1 t5 B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ j1 i$ D7 S. M+ h
- } else {% {- f: G- O9 b: S9 W
- Update.printError(Serial);
- {) @" \/ S0 s1 ? - }
) E( F) ^9 k2 a3 x" {- c6 E3 } - Serial.setDebugOutput(false);1 k, [5 B9 v8 p3 K# R
- }5 r3 R j8 h. T
- yield();
" J3 i7 A: Q0 j- C+ k" X2 X* p - });
+ C- U% \: I5 F& }% n4 ^ - + Z! G: o* F# Y2 U2 C" m7 r
- digitalWrite(2,0); b" }: _+ ^ ]! g4 `, k7 {
- mainAction();/ d9 N* s3 ^3 c& @
- if (digitalRead(0)){
# n/ S" b- x$ c6 j; _ - ESP.deepSleep(0);
7 J, ^4 o: X$ ], w. B- h- l" a - } else {4 n* E" X2 p3 E7 V) _
- server.begin();
& [. V" G/ j D5 D' ~5 ^ - }3 p: K. l' |7 n9 D+ k8 F
- }, h) M, h! j l- H2 J% Q$ C8 k
- void loop() {
# n$ m/ U3 F+ `4 O' b. W% ?: a, h - server.handleClient();
3 M2 B: ^9 k- M, O - delay(1);7 r8 L: j- P& v3 g5 y
- }
6 i: v1 o; R x/ t- A - String doGet(String url){* _6 D9 t! x) p3 Q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! }# S1 ~, H; K7 D% x7 h" X# U - HTTPClient http;
) C. L! p9 U+ G( _ - Serial.println("[HTTP] begin...");
5 Q: s" X/ l ?0 x - if (url.startsWith("https")) {
9 \9 e" t; W) D - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 r2 t( j8 R1 W' r7 w# m - } else {
* ~+ D9 {; R* w! g+ O' V ?+ r, w( @ - http.begin(url);7 q3 n+ L! E+ v2 o
- }
" t- J/ ~3 _: a* P* i. Q: X3 I - Serial.println("[HTTP] GET...");$ T' K. B. D! G" {$ r
- int httpCode = http.GET();
, W6 R e6 j" `8 X2 ` - if (httpCode > 0) {
+ T" }9 u5 A7 f! z8 y - Serial.printf("[HTTP] code: %d\n", httpCode);( I8 k8 V% o$ D$ s; W9 z1 P `) I
- if (httpCode == HTTP_CODE_OK) {) t1 j- \: k8 L1 g, q. H
- String payload = http.getString();
$ S- [1 j& m7 |* c8 k5 |4 I - Serial.println(payload);
, i* X8 W: y" D. R - Serial.print("\r\n");) `4 }. m" ~! k
- return payload;6 |. K) |4 h5 I( d% f3 j. M8 S
- }" i. a. P2 D+ v+ e
- } else {
1 ^& ^5 l* H; E - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 N% b( w- \/ L% O" \4 F: d4 ~' v3 l - http.errorToString(httpCode).c_str());, Z: Y1 Q* c& N/ I: X1 Q
- }
' c, v X5 U+ ^" Y. ] - http.end();" D% o0 [8 \1 l' d. u% u+ a
- return "";
' Z, |/ h$ T J - }' j2 \$ V0 x! g7 B, o7 n! p) r. _
- }
6 c5 ?' J: Q6 l - void mainAction() {! T5 t3 E* |+ Q: g( ~" Q
- // 发送请求
1 T. h) n6 s Q - doGet("http://google.cn");! ^1 Q' l4 ^+ Z' l% U2 [! k
- }; @9 M2 ~* A8 }9 C! v# [
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