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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)' X) D0 |1 D6 w2 [
- #include <ESP8266HTTPClient.h>; o* k$ z5 U6 B, }- M" @2 e
- #include <ESP8266WiFi.h>( x) \8 e/ P/ b# q# g- U7 @) ~$ [( e
- #include <ESP8266WiFiMulti.h>8 p3 J2 P$ z0 K1 r. [% |
- #include <ESP8266WebServer.h>
9 M! u4 L2 D- p - #include <arduino.h>2 {: f; R( M, v1 x* v( _7 H0 i, }
- ESP8266WiFiMulti WiFiMulti;* y& c( x% O9 k [
- ESP8266WebServer server(80);# C6 y) w! ]4 C: ^: `) A( e Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 w( K5 [ a% X, p' A
- ADC_MODE(ADC_VCC);$ \4 u, p0 Q0 c0 e6 |- f% C
- void setup() {% P" y( h' r5 U* U. S+ y* K
- Serial.begin(115200);5 R1 w$ i9 F' i# v
- Serial.print("\r\n\n");5 [% E9 m7 D0 \4 J& ]' N3 F8 U, L* h/ R
- pinMode(2,OUTPUT);
* m/ ~; V- \4 F8 L. B' V" d" j' C/ R, [ - // WIFI" |* f* L! a1 O3 P$ S
- WiFi.mode(WIFI_STA); f9 d9 y3 O* h9 n/ H
- WiFi.hostname("Sparkle");* ]* l$ w% m$ p3 y" h2 A: k2 T
- WiFiMulti.addAP("wifi ssid", "wifi password");% S4 ]" o) m. b, \) O
- int tryNum = 15;! S+ P+ L8 b( z2 a* Y0 K) s* c
- Serial.print("Connect WiFi");4 ]' m( s! g: M$ e( x
- while (WiFiMulti.run() != WL_CONNECTED) {
7 Z; i& v8 |8 ]' \$ ?% d - digitalWrite(2,0);
( x7 W/ C+ ]) v1 M% M: d( I - delay(200);) k1 M; |5 a& b3 {/ }+ m
- digitalWrite(2,1);6 X* N: d Q c- u6 l
- delay(300);
/ U: K- b: m! e2 v - Serial.print(".");
' m+ v- s5 A5 Q/ g' o - tryNum--;3 M" `, y; O9 S& ~
- if (tryNum == 0) {7 C" d9 D' @- P o
- // 1min
4 b9 I' M( ]# _" x1 J4 O - // ESP.deepSleep(60e6);" e4 _/ X& P* ?; z% f- |5 j& W4 f9 F
- ESP.deepSleep(0);
6 j7 n) J( D' s - }
5 g0 |: Q. K7 P$ S7 j7 T) v - }
" S' Y9 n7 Q" j' R5 x1 ~6 Q - Serial.print("\r\n");7 w, `' m0 Z% M& L/ D# J4 J
- digitalWrite(2,1);; N, R v: K% d" B7 h0 H$ u
- Serial.print("IP address : ");" L/ s; G9 w* j7 j! t
- Serial.println(WiFi.localIP());- x; G# a! x" x' e z: a/ g" G: A- L
- server.on("/", HTTP_GET, [](){
' G a) Z, Y t" n; `6 N! ^ - server.sendHeader("Connection", "close");' U! [; d0 h& i% g- p; A i0 r
- server.send(200, "text/html", serverIndex);+ R/ V' R- c" G& U
- });, m( O( m/ k* S% J s0 L/ S
- server.on("/update", HTTP_POST, [](){3 f& J) W' z% I9 B1 o
- server.sendHeader("Connection", "close");
% @0 r% Q" B8 y% C: b J - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" |# h$ J% p/ N& o5 Z2 ^- c9 J. p - ESP.restart();+ {5 Z$ d3 H+ V- ]2 W5 K
- },[](){
- F8 ^6 M+ r$ U/ I1 L - HTTPUpload& upload = server.upload();
( v! \2 h0 o- i" S1 {- n# b - if(upload.status == UPLOAD_FILE_START){
$ W% L- C. M9 H1 d! U) m - Serial.setDebugOutput(true);
; q: h( Q, r* t+ G& P - Serial.printf("Update: %s\n", upload.filename.c_str());
$ c+ H9 N/ \# k5 y: F8 d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* q: c c2 N, Y" \' B
- if(!Update.begin(maxSketchSpace)){
. I0 R; Z# y; f5 D' |# O# p* n6 H - Update.printError(Serial);
) m: B2 v) j4 V# g- |& k. ^ - }* k1 t, }+ t6 C9 w
- } else if(upload.status == UPLOAD_FILE_WRITE){3 I( U G. t. ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ n6 T8 g0 Y2 |
- Update.printError(Serial);, h' K" r4 f- X/ M; j1 T8 {- L
- }8 k& e3 l# G \" U* [
- } else if(upload.status == UPLOAD_FILE_END){2 y; @ B( n! I; l
- if(Update.end(true)){4 }$ P2 B5 _, z9 q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ X$ y9 l4 B0 z( Q' p - } else {
3 `( o0 A* O: u3 Y' K! n6 e - Update.printError(Serial);9 O x+ Y* \& W; Z! \
- }
. Z# X1 ~: i4 Z p: Y4 Z5 A - Serial.setDebugOutput(false);( z M2 w3 z; H( w' i$ `
- }
& |8 u! H6 H6 n) L- ^6 E [ - yield();6 K! c% Y( J) Z3 X
- });% N! ?3 I8 }, F
- ) b5 A L( A5 b* Z* v9 U* }9 P
- digitalWrite(2,0);
% I O; ~% Q. x i& { }- H b+ A+ N R - mainAction();
+ I( }( v' y2 d, t! _ - if (digitalRead(0)){
. l) G" f; y% @) B! U - ESP.deepSleep(0);
9 u$ P$ }: \% u0 b' L - } else {
+ k ~7 D. u5 j - server.begin();
" A" c+ g8 H- y0 c* R' a - }
+ l: u7 x" @8 e4 ]. \2 ? - }
8 C# ` W* k+ U6 X4 w1 k - void loop() {
! j( d; z8 W/ a' y - server.handleClient();' i# h* T0 M; [# h+ \9 n
- delay(1);' X( n) c _. F" f
- }
" |: u; D) X7 W0 f5 z - String doGet(String url){
# d8 W9 K$ [9 Y - if ((WiFiMulti.run() == WL_CONNECTED)) {
; H; H, d0 U, \: G( Y7 o& _ - HTTPClient http;2 z R" \$ Q) B: L8 I6 K8 Q. N
- Serial.println("[HTTP] begin...");( J$ |& q" z; d* s* U5 d, J6 V# N
- if (url.startsWith("https")) {2 X* o3 b d; \( s7 x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ C- i J% }$ \2 Q: j - } else {
$ s' m4 C/ u- }: ~ - http.begin(url);1 e5 d' q1 P2 t) n; n6 n4 D
- }- L7 b' s/ n5 K/ c5 P c4 J
- Serial.println("[HTTP] GET...");/ f/ c9 O+ [* @
- int httpCode = http.GET();
/ M; D5 N/ O6 n1 w6 g - if (httpCode > 0) {
3 Z) y( k* P- o - Serial.printf("[HTTP] code: %d\n", httpCode);
9 K. e& t. H; S" Q2 e. u) C* @$ S - if (httpCode == HTTP_CODE_OK) {) h: d1 {0 c T
- String payload = http.getString();7 s4 f9 T) {3 B( z
- Serial.println(payload);
2 v, k! Z2 T/ Z$ g$ o5 q3 u: U c5 z - Serial.print("\r\n");6 H" c N2 Z( u& Y0 @* X
- return payload;
( f: I' q9 G8 k; j - }
8 M# Q X' T( |' G: U* c3 O - } else {
: i$ q9 \3 C4 l5 c8 j - Serial.printf("[HTTP] GET... failed, error: %s\n",
6 k+ }# U( h) v6 Q( l8 P2 s u' D - http.errorToString(httpCode).c_str());5 m* X# l6 T R3 ]1 n4 C
- }
. e4 l. x: G% p, M* P9 d: [ - http.end();, k# P3 R) V3 i+ s; F
- return "";- Y/ p+ N9 O) k9 y, B
- }7 V3 \5 e' ?# y9 |. B& r: N1 D* d. J0 m
- }
- r$ n# n! \/ m - void mainAction() {4 P) l$ X1 I9 y* k1 \4 Y* C/ E8 s
- // 发送请求
) [8 T, P) O- r/ t# {$ E - doGet("http://google.cn");+ Q! N0 N: D& @/ ]4 Z+ o
- }8 l, m; _" n" K: k
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