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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)! ]8 _- \ Q8 B
- #include <ESP8266HTTPClient.h>
. F! ^0 |7 o- }3 r# b3 j' K - #include <ESP8266WiFi.h>& a8 u$ d K# n6 _ r
- #include <ESP8266WiFiMulti.h>* y8 i4 l6 C9 q8 L1 H
- #include <ESP8266WebServer.h>3 @7 c: g. A& R. c
- #include <arduino.h>
+ h" C. v) ^7 R$ J7 Z" _ - ESP8266WiFiMulti WiFiMulti;
: b) f9 x* J0 E0 A$ X - ESP8266WebServer server(80);1 N& Z4 ~( ^) M, I5 C. M$ R
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 b- Y+ N$ L6 l8 e6 C7 c* F - ADC_MODE(ADC_VCC);/ B0 D4 U$ @+ j
- void setup() {
6 I N7 r# m- J6 |, ^0 \4 c - Serial.begin(115200);
/ i4 Q6 G. H4 H - Serial.print("\r\n\n");; p+ N5 ?9 S( I
- pinMode(2,OUTPUT);
6 G* t( [% n& r( j* j9 c5 k - // WIFI
# P5 A8 N6 y- K6 W% ?7 H - WiFi.mode(WIFI_STA);
t# ~3 ~8 A. m( e0 D! ^ - WiFi.hostname("Sparkle");
. j6 e. c$ b; t% N f4 \& X - WiFiMulti.addAP("wifi ssid", "wifi password");' f: Z$ ^/ u6 U* q8 h
- int tryNum = 15;
- V; t+ d, k& Y3 _ - Serial.print("Connect WiFi");
0 M: v5 y% d7 m7 P3 T6 S1 S2 L - while (WiFiMulti.run() != WL_CONNECTED) {
8 C6 v" f i D. [, h: A8 x - digitalWrite(2,0);" [7 w. u3 ~1 E1 T4 [
- delay(200);
; r, Z2 C: W2 c+ ]( L5 b) k - digitalWrite(2,1); Z7 I* x! g6 [# o* I# l
- delay(300);
; l# k! `/ O& v: h# U - Serial.print(".");) g7 ~$ I) s2 G9 L. ~
- tryNum--;
4 f+ Z2 I0 ]1 S* o) D - if (tryNum == 0) {5 S6 x4 y3 q4 u! e2 y6 d$ V! {
- // 1min q: V+ q5 C( ?- u
- // ESP.deepSleep(60e6);
5 n- n; v" D# f% j2 n0 R - ESP.deepSleep(0);$ Q4 \9 p5 A; N* u9 h
- }8 v7 N; T% W$ q o9 C' [
- }
+ S9 q3 V$ Z: I7 I& h/ x - Serial.print("\r\n");
7 P' [" w8 O( J- V4 f' D# b2 t2 X - digitalWrite(2,1);# _3 |/ ?+ d7 }% P' h
- Serial.print("IP address : ");
9 c, N6 c8 ~4 Z/ i, h- f" [7 _ - Serial.println(WiFi.localIP());
$ L' l5 A) l8 B% u& b - server.on("/", HTTP_GET, [](){
- ]! w! E9 L: N: k - server.sendHeader("Connection", "close");
* r6 G& C3 q9 j. Q/ z7 L) W/ y7 A - server.send(200, "text/html", serverIndex);. e" l1 J' k. o/ z1 f3 \/ x. J
- });& w' C. X' f ]0 l3 o
- server.on("/update", HTTP_POST, [](){4 w/ e6 R7 ~% [( a1 `' A. f+ P! {
- server.sendHeader("Connection", "close");8 p$ r/ q: c) G$ i0 j2 ^: J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" F( c# u: B$ e - ESP.restart();5 c$ R& x- I6 b ]- B# t
- },[](){7 U% H( L5 O- Q) l
- HTTPUpload& upload = server.upload();+ ^0 f$ s0 A- l9 l3 B% a5 |
- if(upload.status == UPLOAD_FILE_START){1 q4 _+ |' t3 _( V5 s0 M# T9 W6 l
- Serial.setDebugOutput(true);
8 L u* G% N4 `/ n5 Q. q - Serial.printf("Update: %s\n", upload.filename.c_str());1 X, F# \8 |8 n" ^% N' {' \* G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ N7 u0 _6 l7 }& \3 E( S* K
- if(!Update.begin(maxSketchSpace)){
0 K1 [# q1 n1 R; @ - Update.printError(Serial);! @* r& H+ u: z2 q& }- W& Q
- }
9 J% A4 k$ B- ?" ?1 r: s - } else if(upload.status == UPLOAD_FILE_WRITE){7 A/ r# c7 T2 o, x8 u1 \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 } c* Q% g$ X" G% A - Update.printError(Serial);
- T5 R. s$ d; D% X. X+ v - }
8 c$ `- {9 }/ R* ?* h - } else if(upload.status == UPLOAD_FILE_END){2 G z$ q& t" `) Y' M
- if(Update.end(true)){1 d1 f2 ?' U [. N$ m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* e/ X! s+ ?& q% Y% f5 K* r* ^5 d
- } else {
" F4 U! v; t7 A+ d) U2 h7 ]8 ]7 U - Update.printError(Serial);: @1 w$ G: X8 k y3 x8 f
- }8 m3 O) u% g# R5 n3 O# n/ k6 S1 M
- Serial.setDebugOutput(false);* x$ c6 r" m. J
- }. U* n/ o0 M; m
- yield();
2 Y( B3 V- k9 X - });: F' o1 g. R# Q5 n7 T3 J$ h0 R
-
: y, R; E& w K5 O4 Z( [ - digitalWrite(2,0);: w/ X; |" c$ F( f" M' b
- mainAction();' ~ X' U# [, C7 H, a2 N7 I8 O
- if (digitalRead(0)){
! [* |4 a( N1 `( n- I( w5 w - ESP.deepSleep(0);
- O1 P% G3 _* P8 y$ {' ] - } else {
6 A2 @ Q# \- g0 S [, s) W - server.begin();. m7 J+ q' m; Q. J9 J! {4 g
- }
- A" a( w }7 b$ d. O - }
; r6 [9 Q3 v3 U! j8 o/ w# Z - void loop() {. x( N: F7 K' e F) N0 H3 Q8 [
- server.handleClient();) F. G' u& W+ h/ s
- delay(1);+ N( O3 o( T9 ^) w, @5 @8 r, z
- }8 Z7 R% J( S3 m9 z$ T5 X, K
- String doGet(String url){
8 S0 n7 t- q2 T# f" ^! W - if ((WiFiMulti.run() == WL_CONNECTED)) {
; `, @9 K) J. A9 |, E% A- P7 G - HTTPClient http;
5 `# X2 ]: z+ C) e, }; O! `" X5 t0 V - Serial.println("[HTTP] begin..."); j) x& H p6 |% t# r
- if (url.startsWith("https")) {4 _) k! n' N: e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! E6 u4 d* e$ q - } else {3 `' c2 m7 D; _
- http.begin(url);
' r; }+ A( y) D - }
1 U7 d; X2 p. j# }4 k - Serial.println("[HTTP] GET...");6 ?5 G' C2 @2 @4 s
- int httpCode = http.GET();9 C) g/ y& O; I9 e- }
- if (httpCode > 0) {& o! O6 j/ T8 C1 u! s/ a
- Serial.printf("[HTTP] code: %d\n", httpCode);
7 y, x2 U6 U' z" x - if (httpCode == HTTP_CODE_OK) {
4 v2 P5 J: I, X9 _ - String payload = http.getString();6 {' H7 @, G! Y5 o7 x: y
- Serial.println(payload);4 ~4 t+ z7 y0 F1 T
- Serial.print("\r\n"); D, ~" ^- Y2 U9 p# `. T
- return payload;
) i! d5 L1 J2 H/ Y( |2 [2 e1 X - }1 _$ U) ?8 m3 x: W
- } else {
$ r! w3 \/ y8 ~' t - Serial.printf("[HTTP] GET... failed, error: %s\n",3 @0 }! j1 }& ~& {* ? ] Q- f$ F+ c
- http.errorToString(httpCode).c_str());
: t1 S1 i$ a6 C/ F+ ^& X - }) W% b( O# e2 ?0 {3 D b
- http.end();
! s' g4 O& U) u& t, K/ M |0 D - return "";. b" b7 J. |2 q Z# E2 A% \
- }
+ B9 h) C k; | D0 A2 w - }
' O) O# O) `. X( J0 S - void mainAction() {
0 T7 w1 S" O; q5 v6 {' i/ w8 j, [ - // 发送请求
4 C$ D2 t3 ?8 w% a5 h, o+ X- U! g - doGet("http://google.cn");
1 n5 Y( ^ _: F% _1 A2 h - }
+ S3 d, l& W* d" h8 O
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