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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! |! }; A" D/ H2 _7 X- #include <ESP8266HTTPClient.h>* g$ L% s, R9 l6 X% d4 E0 H
- #include <ESP8266WiFi.h>
' }* ]& @+ Q5 v& B - #include <ESP8266WiFiMulti.h>. k5 f* N9 b) i
- #include <ESP8266WebServer.h>! F9 w0 ~9 ]9 x. [
- #include <arduino.h>
% t- p3 d: g* S5 T2 L0 N1 W - ESP8266WiFiMulti WiFiMulti;" e+ V$ R1 L3 R
- ESP8266WebServer server(80);
. x5 p! X2 z% n& k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* e/ }# A1 ^) ^8 i v# A
- ADC_MODE(ADC_VCC);6 a' Z4 a0 O* X, X
- void setup() {
% U3 l, c: E2 C6 B# s - Serial.begin(115200);4 o% U9 b6 R7 x h# v+ f) A: Y0 w9 @
- Serial.print("\r\n\n");
' ]& E: h- F* m$ j: L7 v2 X: E" F - pinMode(2,OUTPUT);2 L8 [ U# k7 D& \) A
- // WIFI9 n, D. Q8 f1 N" v
- WiFi.mode(WIFI_STA);
& q( I$ D" s3 v1 b - WiFi.hostname("Sparkle");
4 W- k# x" f9 g - WiFiMulti.addAP("wifi ssid", "wifi password");
) [3 f: R0 r9 P0 B. H" X3 x/ N- L - int tryNum = 15;
) I- N: J0 D, @0 n. t& D* T# h - Serial.print("Connect WiFi");) i: W/ ^! ~0 _) o `! x
- while (WiFiMulti.run() != WL_CONNECTED) {& |& a, ^7 A# d8 Z
- digitalWrite(2,0);
4 T& e- {% l2 B3 s# _1 d# l/ @, g0 w - delay(200);% Y& w2 Q) ^$ m: t) U
- digitalWrite(2,1);
3 s# G9 o0 M' S$ x - delay(300);, m+ e; A: L* E
- Serial.print(".");1 G! ]* M8 ~ U8 b; k
- tryNum--;. Z- ~% I7 @, j5 H
- if (tryNum == 0) {5 Q. R1 ^7 L7 q7 v7 l- r
- // 1min: F' N G- @. } G$ S) p* O) ?4 ?1 k
- // ESP.deepSleep(60e6);7 R* H9 c+ W, a( x s
- ESP.deepSleep(0);
/ O4 y( q* n3 p - }
# g1 u0 u/ q; k% E* Q - }
: o6 }- `% Q% f' w - Serial.print("\r\n");* J6 q3 J: R% ]# Q& U
- digitalWrite(2,1);7 _: A7 Q/ X; C9 G% l3 A. p
- Serial.print("IP address : ");! {! B* s$ y6 j5 g; B* E
- Serial.println(WiFi.localIP());
0 ?, |/ [+ L3 {( K1 p - server.on("/", HTTP_GET, [](){
+ }7 X4 X% k4 O# m+ O4 ~ - server.sendHeader("Connection", "close");" L0 |0 K1 O7 |5 s
- server.send(200, "text/html", serverIndex);+ h" }9 G& [( ~! n
- });* ?" f9 M+ d# O% J
- server.on("/update", HTTP_POST, [](){
8 \+ f8 O" [! e+ P - server.sendHeader("Connection", "close");
0 g2 c" }5 I5 F! {2 A: K; G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ C* Q! e( q. m6 [ ?, l - ESP.restart();
, J3 x B7 q/ e' N. p - },[](){
+ ~! W, l& \4 j% [ - HTTPUpload& upload = server.upload();7 {6 n4 J5 p; O& ^, w+ @9 r: G
- if(upload.status == UPLOAD_FILE_START){% k/ g( v# w% E1 |
- Serial.setDebugOutput(true); ^; @- a5 R4 s2 @ A- C
- Serial.printf("Update: %s\n", upload.filename.c_str());0 n4 Z- t2 Y- O" t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% S1 M; h ?' |. ]' K2 \ - if(!Update.begin(maxSketchSpace)){
2 j2 _' [8 @( R - Update.printError(Serial);# r$ [& `% f$ j$ H& f S8 y# ], ^
- }" F$ w4 @/ j/ A& z/ {: R6 {
- } else if(upload.status == UPLOAD_FILE_WRITE){3 H9 q$ z. T1 F5 O, Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 @1 I$ D& B7 |. l. A: I+ ]
- Update.printError(Serial);/ O- U- C3 J- u; [+ K
- }. {$ B x3 [9 z1 n! i3 x/ Q
- } else if(upload.status == UPLOAD_FILE_END){# G) y3 J% p. r+ ^0 l7 z
- if(Update.end(true)){
5 m6 q7 t' V. N3 [9 g8 u5 h - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" z T- n! U: {
- } else {
% Y6 c- ~% R0 c1 H: b, D& J - Update.printError(Serial);9 U) c. m5 A) t
- }3 |5 G6 o: N# x% Z' k6 R+ h7 M& R
- Serial.setDebugOutput(false);4 f, W- X, e; d8 G. y" a0 P
- }
6 G1 |) s. y0 F& i - yield();. f! m( I: ^' k) K
- });4 d3 z& }5 I$ v( d6 I" ]3 z. X) U% m
- ' K' g9 z$ p+ o
- digitalWrite(2,0);
4 b0 o2 T- d2 Z* T7 J! q - mainAction();) p2 Y) k6 T( A% W5 E
- if (digitalRead(0)){
' l- o: w# i* f' p4 ]* B - ESP.deepSleep(0);
: m9 O2 ^% [, e# _, K - } else {
# v8 \# R, Y; P3 N) p% H - server.begin();
5 p* S. R- h! h; _4 q7 ` - }# P1 N' g f# N3 t- ^
- }1 o, V' C& K. ~& X4 v+ n
- void loop() {
8 K2 }/ E3 m+ E J( [ - server.handleClient();5 M/ ^" A5 l! G* i* N2 h
- delay(1);
2 q# _) s5 T: l* `( }+ ^ - }7 Z+ y+ x4 i- _ O1 G8 k2 L
- String doGet(String url){ a1 J: H4 C* l U
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 l8 J$ J7 t8 X# F# O7 ]. ]% t" K - HTTPClient http;
: |3 j7 r% X0 t0 R; }( G - Serial.println("[HTTP] begin...");3 u! Y; U% B" @, r! T4 m8 X2 L
- if (url.startsWith("https")) {
* T- c9 e) L. Z: ~+ l. F" P# ? - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: F$ P8 {: }3 S! D8 f
- } else {2 B& ^7 o T* G m( b
- http.begin(url);
0 x6 c0 e! Y7 @. I& _8 j# o ? - }
: m4 t8 g; ~* h& B - Serial.println("[HTTP] GET...");; v& I- M. t3 R" U& R
- int httpCode = http.GET();
9 j1 f( f+ U& R5 a5 K @8 Z9 z# m- C - if (httpCode > 0) {7 c, K, a' E! v4 s) g$ j, ?9 Q q
- Serial.printf("[HTTP] code: %d\n", httpCode);4 m" j7 y \, F% S5 x0 R
- if (httpCode == HTTP_CODE_OK) {7 \+ d& d" M& U
- String payload = http.getString();
6 k( ]+ _4 ? d/ L% G- `- I; R - Serial.println(payload);
3 f; \" u0 j n$ p1 T - Serial.print("\r\n");
8 o$ L7 G$ T% X+ j# u$ l! c - return payload;, U& o: `; i# H0 N0 r9 V# I
- }& U, r" t/ L6 ]. N
- } else {
w7 Q0 n8 `) B8 z N - Serial.printf("[HTTP] GET... failed, error: %s\n",+ `( W- O2 m4 K) K; j, Q" o
- http.errorToString(httpCode).c_str());
0 l% d0 f& l1 {6 E/ n - }- q- }% \8 T9 S% x/ @% h! C
- http.end();$ E. {7 I7 g N5 d" `' v' b) Z. g
- return "";
' k- H+ c7 q$ \ - }
" V7 \0 [/ `/ x - }
: O# U9 V0 Q9 ]/ S0 t - void mainAction() {7 T% D( \, z0 R3 @$ C5 @7 Q1 b+ ~) ]
- // 发送请求
' e1 }- |- T( E' ^ - doGet("http://google.cn");4 A( f: N% o: X9 o! l
- }1 c' u* Z. E" |2 ~4 o5 O
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