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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)
7 R$ J( I- s' k& W% V4 p- #include <ESP8266HTTPClient.h>
" |1 K8 e1 g: X3 V* P s6 I - #include <ESP8266WiFi.h>
. K8 _' X/ B _- l( S - #include <ESP8266WiFiMulti.h>
3 u( Z6 G8 K0 e$ [ - #include <ESP8266WebServer.h> T' t) ]/ P& X2 Y# W
- #include <arduino.h> a7 @* M3 P+ t- s9 r
- ESP8266WiFiMulti WiFiMulti;
% G4 a- O0 e8 e% A8 I4 h' ] - ESP8266WebServer server(80);
) N( k$ z5 Y7 y8 c% _" k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* B7 v) h- r) [
- ADC_MODE(ADC_VCC);, Y( E% |' k+ ]4 `( u
- void setup() {, W" p7 d' O5 N
- Serial.begin(115200);/ x# u1 A/ r8 n$ @ x# j
- Serial.print("\r\n\n");
8 }/ R. R( Z# W0 d$ t/ Z6 ?1 i - pinMode(2,OUTPUT);* z$ F) J8 o& I
- // WIFI
/ W8 D$ k5 D" Q* P" \5 j6 B - WiFi.mode(WIFI_STA);
" A# j; s/ C8 S - WiFi.hostname("Sparkle");9 G1 l1 d1 ~; L4 f: q4 ]/ D& i- R
- WiFiMulti.addAP("wifi ssid", "wifi password");- d& j4 K, z: L; f* {4 D# J
- int tryNum = 15;
* t/ q( |$ S1 @4 Z6 C& M - Serial.print("Connect WiFi");; |# w2 e9 [+ w; F) g
- while (WiFiMulti.run() != WL_CONNECTED) {
& F3 k7 z+ j2 u; P) G3 U0 l/ x - digitalWrite(2,0); F+ X; j: }5 g* J( Q" G
- delay(200);; v: H0 v, C. h
- digitalWrite(2,1);
) {; z/ k5 `' O - delay(300);
8 w% `9 |* i0 L; y6 R - Serial.print(".");/ f% _4 @4 a7 j3 ?- G
- tryNum--;
( k) a T# O% a* p& z1 N! v2 t - if (tryNum == 0) {
% d1 }6 G$ t" T Z: x, H E - // 1min( r1 ^1 W4 s# ?
- // ESP.deepSleep(60e6);
+ }" o7 e% a- f; @+ |( q/ C - ESP.deepSleep(0);, j' y, H2 @# Q' Z& F. e! i- N
- }6 ~ r0 r9 z0 W `( E% B/ C
- }2 N$ a5 o- e# u& s) E
- Serial.print("\r\n");6 k" Z: n8 }9 h& _+ G1 p& `
- digitalWrite(2,1);0 x: w6 r7 ^! ]: w) w
- Serial.print("IP address : ");
) B, _/ |3 U' H - Serial.println(WiFi.localIP());
Y3 v; B$ t% R! P$ K' t - server.on("/", HTTP_GET, [](){
/ X, Z( M8 R3 I2 l+ D& K - server.sendHeader("Connection", "close"); h0 \. _/ O3 m* W9 |3 L
- server.send(200, "text/html", serverIndex);
0 R5 N/ ~9 \6 s$ o - });
0 a2 s- |; R) O- Q2 ^- d - server.on("/update", HTTP_POST, [](){% B! K2 ]% n, R y
- server.sendHeader("Connection", "close");2 \: c& M X* e1 A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 N6 _2 [: Q3 X# O y9 E
- ESP.restart();
: R; y8 b2 e& a" n; q - },[](){. w6 x3 \! @1 @6 Z. d, \
- HTTPUpload& upload = server.upload();
( O! @& ]2 @( J2 p0 i( u0 A8 Q - if(upload.status == UPLOAD_FILE_START){% J: t. }$ Q- X) v: A4 r1 C% ~& u
- Serial.setDebugOutput(true);
" v4 j- F8 n! u$ t - Serial.printf("Update: %s\n", upload.filename.c_str());
$ B8 T8 }' P }2 y5 | - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# P1 E( p% g$ d* T0 i; O$ m0 J. _
- if(!Update.begin(maxSketchSpace)){4 W# ~9 D! d5 I: b/ u; T
- Update.printError(Serial);
# x! d% u. M; s: }0 s - }) o7 f+ B8 A: M, }7 i
- } else if(upload.status == UPLOAD_FILE_WRITE){
! {1 m: c- {1 R$ G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 |/ K; u! I" x+ D - Update.printError(Serial); M6 P$ l' c3 R% C/ x3 q
- }
: N* U* o. ~: O - } else if(upload.status == UPLOAD_FILE_END){: x- a f- ~! k+ ~' O
- if(Update.end(true)){5 [/ D. K) A7 V! D4 ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. z' ^6 f# t3 [& I8 y) p - } else {
' N* ~, |+ D$ K$ K' Y4 ^+ V - Update.printError(Serial);
! ?' D# Z3 C7 r! d+ y - }- v- k4 P( S% V/ r
- Serial.setDebugOutput(false);2 j- G; D5 d' S- [' C9 N$ @
- }
* R' u/ _: W! D$ j! C% s - yield();
: y7 X- r+ D0 O7 U9 z - });0 s' t; V6 a6 N1 u) h& S: _6 O+ `/ R
- * u, i3 \# q' T5 l g
- digitalWrite(2,0);% ]1 F: g8 N, L' Q. z! u
- mainAction();
" m" [8 c2 d' I2 P3 ?' k8 u7 f - if (digitalRead(0)){0 X* y/ D0 t! a
- ESP.deepSleep(0);
5 j. U' g. ~ X) [5 x0 n - } else {# V* i9 v6 j* }
- server.begin();
. y) O, P$ v8 F - }# g$ ? I8 q" w5 x: u
- }
& }% \/ l W4 O$ y+ K - void loop() {3 d5 ^* t6 R+ _" t4 a% E
- server.handleClient();
3 H0 u' U4 I, ^ w! J! E1 p - delay(1);5 |) d6 n5 _/ {- c
- }5 }9 s. ]$ _9 ~1 e: @, S% P* L' O
- String doGet(String url){6 ]) t, j7 u$ w3 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 y" Q! @# u) u9 `* r1 u- \% v( j - HTTPClient http;
8 ~9 S9 u& s2 @ - Serial.println("[HTTP] begin...");
+ l* k2 t+ N: r# l- U - if (url.startsWith("https")) {
$ h; |" J* a% c$ ?0 i: l7 Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: `; L# D: u( ]6 u
- } else {
# l) T9 H; m+ N; }! v9 ^ - http.begin(url);
& A$ L4 h) \7 w f$ l, B1 K4 q7 R, i) x# D - }
6 u( s; y& C ~& X2 |; _ - Serial.println("[HTTP] GET...");
/ N- `8 G- r$ |" L - int httpCode = http.GET();
# g6 J! p& e8 f# X" c - if (httpCode > 0) {
7 W. X0 ?3 v* O4 z$ c2 y - Serial.printf("[HTTP] code: %d\n", httpCode);
) n, P% h/ H5 H7 j& f" U - if (httpCode == HTTP_CODE_OK) {8 Q! z3 n3 e+ D' A2 Q9 ~
- String payload = http.getString();$ T: E, e9 J, k) H1 _# V- H" {# f1 }
- Serial.println(payload);& n* N) l3 M/ ?
- Serial.print("\r\n");( p6 J- N U* b6 f" x
- return payload;- e/ r- J3 y5 X7 t" d
- }
) v* Z6 ]6 u2 C, v( M: G - } else {
' Q% ]5 |3 X# A1 \- F: O x - Serial.printf("[HTTP] GET... failed, error: %s\n",+ F. Z# t( I- Q" k; m% ~
- http.errorToString(httpCode).c_str());8 _3 A+ \) l: q' T" I6 u1 s V
- }' D- G5 d! a, E
- http.end();
5 |; ~# [; b8 S- O - return "";
# q+ P! q: c# L4 C7 S5 m5 N - }4 ]1 N( M; `" e* b, x/ b
- }
) Q4 }+ v) S) {# o! H' p$ O' v - void mainAction() {
! Z) N; K- P; f4 ~$ r, u - // 发送请求
* o4 j$ s$ O2 ]* N - doGet("http://google.cn");
+ F2 B/ n$ U* H/ u6 \2 Z - }
+ V- @) d/ T' v6 C# U6 ~0 H1 T
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