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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)
' `. o! r/ ~) {0 W5 y% q) Z' x5 [2 ^- #include <ESP8266HTTPClient.h>1 }8 M2 d+ c" T$ Y/ W; B
- #include <ESP8266WiFi.h>+ W7 q( K0 ~9 x3 ~$ x6 o& C& T; R
- #include <ESP8266WiFiMulti.h>
+ m' d" p* \: ]" ]+ ]7 E; H0 n" h - #include <ESP8266WebServer.h>2 Q( D' y3 S9 X4 r& ]
- #include <arduino.h>4 y: k! V" l; D. p3 _
- ESP8266WiFiMulti WiFiMulti;7 k$ q6 x3 y# i( B
- ESP8266WebServer server(80);
6 c! L t6 R- }8 _9 Q: l' g - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 w/ u5 W6 p: y# _6 j' ^4 |, O - ADC_MODE(ADC_VCC);: L. _$ y+ r8 t4 o0 J8 x9 q
- void setup() {
9 l, j% J) C) A6 k1 a8 P8 o9 { - Serial.begin(115200);* ` `& e- ~, B" a8 G4 P2 B
- Serial.print("\r\n\n");) M" R8 P! |4 ]" o
- pinMode(2,OUTPUT);' L+ G/ D% ^3 {
- // WIFI
k9 ^ Y3 Q' R( v0 n - WiFi.mode(WIFI_STA);
) F5 ]4 H4 H* Z' A - WiFi.hostname("Sparkle");
# |' p" }5 i# B' v - WiFiMulti.addAP("wifi ssid", "wifi password");
6 U- G/ W2 M2 K - int tryNum = 15;
8 j* y9 }$ O, v! ` - Serial.print("Connect WiFi");* B5 w% ]6 |8 |$ Y! p a
- while (WiFiMulti.run() != WL_CONNECTED) {
# Z' \3 {8 E; D - digitalWrite(2,0);8 I E% [' {! q" x
- delay(200);
- V3 d l# I+ ]* d! y0 F2 K - digitalWrite(2,1);
5 i5 g$ H& I1 t" G! g. d4 q2 R - delay(300);
2 a9 h, q" V+ E0 M! C( m5 s - Serial.print(".");
+ k8 C( @3 F; A' ?# e" E0 J) x - tryNum--;4 O3 h7 |7 d% D: y/ a
- if (tryNum == 0) {
( _3 e6 n& X/ W/ I - // 1min' i- P. V9 d/ x, r5 `; {) z. S g! ]
- // ESP.deepSleep(60e6);7 Z- d( B) W2 S4 q3 m
- ESP.deepSleep(0);
$ b. p3 n; I$ C* i7 p8 j8 X - }5 J3 p5 z0 j8 V) `4 E# b9 X6 e! }
- }
3 i- O1 R q) A' _1 o E: x - Serial.print("\r\n");6 F+ s8 G2 C6 z. K% W4 z; F. n
- digitalWrite(2,1);; E/ q. D8 d5 b$ o% T
- Serial.print("IP address : ");! z( o7 i) D g' b3 {% }/ d" H
- Serial.println(WiFi.localIP());
1 g/ g; j' A+ C% t - server.on("/", HTTP_GET, [](){
7 h% v" i4 J9 f: i, i6 u) x' j- p - server.sendHeader("Connection", "close");
9 o9 Z) z0 o8 I {/ y4 Q7 ] - server.send(200, "text/html", serverIndex);" T. j) K: l: F- b @/ V! M, C2 O) B
- });7 Q7 p" D V' P' R) y8 l/ h: a
- server.on("/update", HTTP_POST, [](){
/ T! g" }# ?, V! g - server.sendHeader("Connection", "close");
" t2 O* U8 N: _2 \. U - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ s& ]- X2 F3 q$ N' n, X2 B8 ? - ESP.restart();
0 T& T( K/ P- D# i" B w - },[](){& Q4 T% \+ Y4 ?% k1 L6 }
- HTTPUpload& upload = server.upload();* n) X# M9 f5 `3 x+ c' P
- if(upload.status == UPLOAD_FILE_START){+ d' \" H) ~; r+ o0 }+ x
- Serial.setDebugOutput(true);7 A" j& n3 F* u2 S; A
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 |1 A8 u$ ~% C: E+ W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 H8 }0 K1 ?9 D$ Y/ P( S! @: y
- if(!Update.begin(maxSketchSpace)){
M# d# s. T$ k9 W3 b& S& U# t, p/ y - Update.printError(Serial);
* v1 e5 l0 h- M1 a: E& g: ?$ l8 X; I - }
b. v( c7 o' m$ H5 _* K- l - } else if(upload.status == UPLOAD_FILE_WRITE){% @* N; U$ i, C) w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 |- {7 x6 j) o! j& Y
- Update.printError(Serial);
: U( b: m- H/ x# f) [ - }5 r: T ^; K0 g
- } else if(upload.status == UPLOAD_FILE_END){" u" N* t" x* b+ r' q# K. {/ z- G
- if(Update.end(true)){
5 E `' q- k! y E* Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 C5 P0 _! j4 n: o9 `
- } else {
) s7 r, P# w6 s - Update.printError(Serial);5 o* ?0 y1 \2 g, m% `
- }
% K; Q' b- s( _9 c1 M: Z - Serial.setDebugOutput(false);/ ^/ v% x, \- I3 I
- }
0 t; K$ v1 Y }5 B/ X - yield();
" s ^2 a# n0 ?* w5 W {. Q - });: v, U& I- ]3 O0 S
-
+ t/ z$ e& n( [6 {" N2 i5 `$ e7 R - digitalWrite(2,0);" F. t% b8 k0 \/ o9 l6 s4 v% R
- mainAction();
{& h" O7 S( Q o$ S - if (digitalRead(0)){
7 N- t: _0 a% J - ESP.deepSleep(0);# V! v* D- O! f. i Q
- } else {
% A- R' f0 K8 R8 S- ?/ L - server.begin();
6 t0 N6 M! z! z0 o% e* ] - }+ ]+ W2 @+ p& ^$ h
- }
+ V, \0 k, `+ h7 t0 ^% o7 { - void loop() {
3 Q: G! n& t$ {9 Z! q1 B4 f - server.handleClient();
7 I' h+ C: C! i& \ - delay(1);8 U/ t% n' M E8 W
- }
0 N2 W# [' i; `- F8 a1 J; I - String doGet(String url){* c2 r+ H( f8 n/ Q M% i- ~+ R" Q8 ^1 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {! K1 S3 v) H" K/ j: v3 S5 N8 @* I3 q
- HTTPClient http;( L2 E) d/ r( C/ @
- Serial.println("[HTTP] begin...");; f* E% ~& c4 K! [
- if (url.startsWith("https")) {
: F1 w# M5 H/ l6 y. O" I6 H - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ ^/ K# ]( |1 o3 |8 g
- } else {$ s7 Z( e3 G4 _* p8 t; |7 @
- http.begin(url);
3 c0 D b( X) f V - }+ u1 }3 n! s" H3 F# U' I/ N" W
- Serial.println("[HTTP] GET...");8 o4 D8 t! k' X/ ?6 K7 U* S& z! q
- int httpCode = http.GET();
n+ C3 j! I4 E2 D8 Z% V! r - if (httpCode > 0) {( g6 L& x6 }- m1 |* r+ R# k- J
- Serial.printf("[HTTP] code: %d\n", httpCode);
* ]% Z; D2 B! |7 f# u - if (httpCode == HTTP_CODE_OK) {& B" {1 n$ h; J* R2 p! r2 j: P
- String payload = http.getString();
$ U; |% ]; V0 e. M- Q - Serial.println(payload);
6 J# q( e8 X' d: l2 W% f/ G! } - Serial.print("\r\n");+ n4 B: \0 d2 D! u$ V, K4 C6 m j
- return payload;' i; O. e: s9 f2 Q: j
- }
& D0 G/ [) R: y( N! _/ M - } else {
7 B+ M k& U2 \& Z% n! |: v$ s9 |. J - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 I' }2 s0 z5 g: @2 ^9 D( N/ ] - http.errorToString(httpCode).c_str());# U) n- W+ U. Z2 ~" A7 ]8 a; w
- }
1 d: r+ M, q; R: X9 v: f* k - http.end();
* O3 ?5 |: H% ^/ ~ T - return ""; E, c) h- k' V& v6 A
- }" h# o% f8 u$ y7 t+ n( N
- }
! ]- w* \( N7 s: ] - void mainAction() {
( v) x* G! f; G& @% i - // 发送请求
% x1 _# s9 ~" ]3 h/ S% D - doGet("http://google.cn");
1 [+ u, V0 n4 b( f9 v1 ~ - }
1 y* @& T4 A! @4 ]
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