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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)
, Z2 M9 g4 ~1 J |- #include <ESP8266HTTPClient.h>
5 e& s: a( r/ l0 }$ h& u - #include <ESP8266WiFi.h>
n# h$ ^$ h0 N( Z/ n - #include <ESP8266WiFiMulti.h> k/ y5 F2 W# v' y
- #include <ESP8266WebServer.h>) I6 g/ K& W3 w& u8 R6 x
- #include <arduino.h>
$ I2 G% H$ x7 ~( |! l* |+ w* o - ESP8266WiFiMulti WiFiMulti;
) ]3 v9 S6 `8 S* y9 z$ d) S8 e - ESP8266WebServer server(80);
% r8 b0 c3 i% K ]7 y2 L' n4 S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
H. K9 _3 O) a! w7 I$ b0 T - ADC_MODE(ADC_VCC);2 V) j! J% M: z2 ^9 s0 i2 J
- void setup() {2 x$ W: V0 R& x" {
- Serial.begin(115200);) H3 G/ x0 L& d" P" w
- Serial.print("\r\n\n");5 v4 m9 E+ w! G$ T
- pinMode(2,OUTPUT);
" H" P2 W9 E$ U8 \6 w9 S - // WIFI
8 G2 w7 k- k* m4 ? - WiFi.mode(WIFI_STA);
. {# O6 k& z8 N" p4 ^ - WiFi.hostname("Sparkle");8 w" ~. l# Y9 a6 Q# I6 n. r9 w3 n
- WiFiMulti.addAP("wifi ssid", "wifi password");3 r3 f# s, D5 |; s; V
- int tryNum = 15;
, ]9 Z1 q6 L' M- n* i - Serial.print("Connect WiFi");6 S( F2 m1 L) p
- while (WiFiMulti.run() != WL_CONNECTED) {
7 T. t/ `6 L8 P& _* K: T - digitalWrite(2,0);1 K, P' g( S% z# u# ^
- delay(200);
4 B% M( g6 U+ |) O - digitalWrite(2,1);' H* w5 ^, R1 C) p
- delay(300);
^: G4 s2 \: ? - Serial.print(".");; c4 V4 i# U* r' v( k% c( G" P
- tryNum--;
( G& l. n# v* o k - if (tryNum == 0) {
5 u; m* p& B* X# Q4 b$ b2 c - // 1min" Q4 P4 |. ~8 f' s, o1 m
- // ESP.deepSleep(60e6);
* r3 }: R5 G5 |" | - ESP.deepSleep(0);
8 t) r" j" y" o% p* b8 j" W7 O9 j4 k0 B - }. ~. x, z1 C* w! g: N
- }+ R' v9 i$ d! Q% U$ |* Q5 W
- Serial.print("\r\n");
, V7 s0 \- \7 r1 L) K$ m, k$ }6 H - digitalWrite(2,1);
; m4 J9 Y- A; r" k0 f7 B# O - Serial.print("IP address : ");/ E) _; S! _/ P. r
- Serial.println(WiFi.localIP());5 I, g+ |! [9 z; o0 i! k
- server.on("/", HTTP_GET, [](){
' @9 w* [0 L1 g7 a/ E' i - server.sendHeader("Connection", "close");/ H) G2 ~9 Z) i9 A) ^" ?
- server.send(200, "text/html", serverIndex);
+ f) Y# V+ r5 H' g/ x D9 b - });. d7 H/ @. L% o: I
- server.on("/update", HTTP_POST, [](){
# \! O3 A3 [3 N. e# s- t# `, [' j - server.sendHeader("Connection", "close");
/ o _' L9 i. g) e# \, ?9 n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ \6 E% H. o7 F - ESP.restart();
6 v5 b! v7 R8 C. Y - },[](){) q5 O0 j, Q! D2 o( p
- HTTPUpload& upload = server.upload();: C) C: T6 r( r# P5 x8 R: ~$ {
- if(upload.status == UPLOAD_FILE_START){
+ J9 `% U L+ k" j) z' G J - Serial.setDebugOutput(true);& u) H; h9 O0 t8 E$ p. s+ P4 Z- \
- Serial.printf("Update: %s\n", upload.filename.c_str());
* \& e6 j6 r' X8 W; T0 a# x$ }) O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( E3 K' J3 r% i5 E+ |
- if(!Update.begin(maxSketchSpace)){
* z- A0 r) _0 p. _" j) [* i - Update.printError(Serial);5 b! y( Q/ W8 I7 f3 c" Q$ U5 \. l6 G
- }
9 [* d3 T$ J A G - } else if(upload.status == UPLOAD_FILE_WRITE){
, M! G" _. R! Q7 l: I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% N4 N$ k O( u) \+ j
- Update.printError(Serial);; C0 k& U% e6 f! d9 h L: @
- }2 d) p) @( b5 I6 H6 ^! {7 `1 A
- } else if(upload.status == UPLOAD_FILE_END){1 b% ~* M$ o7 ~" P
- if(Update.end(true)){
! @0 L7 g6 i4 P; ?: H. a& w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 i9 t4 b# m: b$ i& o0 b - } else {
- Q! J2 z$ l9 N7 ` - Update.printError(Serial);
/ A; v) \! Q; G1 O/ i. t; Y - }
& B# J0 l- E8 v* V2 C% |9 m7 Q - Serial.setDebugOutput(false);
* ^8 C8 Y7 W- t4 |/ b - }7 L, @, y* F( W" n; P! h& u. n( ^
- yield();6 K! `: [6 n6 G& P/ {* l$ v+ L
- });
2 z/ @6 v) I. D" l: T - 5 T3 @1 j) ?3 g% K0 H/ q
- digitalWrite(2,0);9 W) V6 W2 V& ^- _) g
- mainAction();
' e+ N: t7 b" h3 }% X- k - if (digitalRead(0)){
* R$ A8 U. c' ~9 j+ d$ |' ^( O - ESP.deepSleep(0);- Y* d4 ^( [! K$ `/ H
- } else {2 {; u. A! J2 T, Q- n. i- `
- server.begin();
$ [, @+ {; `* ]3 ^1 j# {; x/ O - }
3 _+ w' w& o/ M. ^1 S - }0 b# b% h6 r: p& Y" o5 }2 k( E, N0 L5 I
- void loop() {" D1 T( v4 I+ ^+ ]. i
- server.handleClient();# f0 w8 ~* i2 w/ x, @' N a
- delay(1);: B+ I$ U- x. V
- }
/ B7 Y4 r& g8 v- Z+ X9 @+ J - String doGet(String url){$ y9 Z- D* r {; z2 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) o# t8 [0 y) W2 z7 \# }" `3 k' x - HTTPClient http;* o" C/ [0 v/ u- ~ l
- Serial.println("[HTTP] begin...");4 ~4 }3 e5 n' `- ?
- if (url.startsWith("https")) {! m3 X. w- {0 i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 V! S1 U% _6 a, M6 l1 W5 r - } else {
7 @) F8 c; h q4 d& b" q - http.begin(url);
5 z6 R# Y1 m8 |! Q- E' o - }
* m2 t# {7 f% {+ E6 T1 `+ m/ t5 n - Serial.println("[HTTP] GET...");
! X9 W' |3 t1 F g+ I* h- a) Y9 i - int httpCode = http.GET();
: @1 U; C7 k1 j8 r0 w. W( j* f3 c& ^ - if (httpCode > 0) {
2 B4 ]5 C% Y7 l- @; G - Serial.printf("[HTTP] code: %d\n", httpCode); V* D6 i! f0 O) @. c9 d( t* `
- if (httpCode == HTTP_CODE_OK) {; L/ Y- c3 l a4 r# f* g
- String payload = http.getString();7 v4 b6 }, X) e. _
- Serial.println(payload);: T) |/ C1 H2 A- l
- Serial.print("\r\n");
3 @4 | i( U: Y d2 t - return payload;
8 i0 C7 q: w( F1 Y3 q - }; F9 L& S) |% E( ?( ]$ p( ]
- } else {
* J ]6 A" X9 l - Serial.printf("[HTTP] GET... failed, error: %s\n",# v7 C8 O6 O4 }
- http.errorToString(httpCode).c_str());
- K4 p0 w2 o$ |! R! c- T4 E4 C - }+ A* J$ a3 R. |6 c7 ?2 x
- http.end();! ^9 b1 z4 F$ U* ]
- return "";
1 z" H0 C' h' N - }
5 [2 U( Y2 u) L" ]/ a - }
" o# ~( D' q$ ]2 f/ a! m) C - void mainAction() {
. p# t( R/ O% M1 O* k6 c - // 发送请求# D E* F% g' O/ B1 W
- doGet("http://google.cn");0 \: E( ]! C- B! x2 M. t. Y0 b
- }# e+ `4 i4 i$ I/ b( Z7 d7 X& E
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