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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)7 {3 S6 y/ |7 q
- #include <ESP8266HTTPClient.h>) k# \; Z1 H# f; I' C
- #include <ESP8266WiFi.h>
' h$ M2 k! e% _- E - #include <ESP8266WiFiMulti.h>
/ b% E3 ~2 I/ U- w Z - #include <ESP8266WebServer.h>4 c0 j/ @6 T" }: I1 t' s
- #include <arduino.h>
3 C4 A' m9 S6 P. m* b* G - ESP8266WiFiMulti WiFiMulti;
5 j9 A F! T; s% D - ESP8266WebServer server(80);3 b. ~! K7 v& O
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 e( N. f& f( T* m- r
- ADC_MODE(ADC_VCC);# N4 R/ C. v! j3 v! x: C
- void setup() {
: v1 `# u+ F- _& Q$ s3 ^ - Serial.begin(115200);
$ M% Z( o2 e1 e0 g- _$ i - Serial.print("\r\n\n");7 v2 X6 i7 K0 [2 {% t
- pinMode(2,OUTPUT);$ q6 h. a5 x* C' u: c4 ~0 H
- // WIFI4 v9 P/ Y# @+ \4 _, x# u
- WiFi.mode(WIFI_STA);1 p4 V/ q; k, Q0 U* N( a
- WiFi.hostname("Sparkle");
. I& r0 ~+ J0 L - WiFiMulti.addAP("wifi ssid", "wifi password");/ `2 c6 d) M6 x% n0 ]
- int tryNum = 15;$ ]& \* v) r5 n6 K
- Serial.print("Connect WiFi");2 G# s# |; B( [& D9 L/ e* l
- while (WiFiMulti.run() != WL_CONNECTED) {
9 ^- G, N3 U) o2 ^4 M - digitalWrite(2,0);
7 F. d/ u* d& {: _6 Q8 ` - delay(200);9 z9 \" p" [- `! Z; g+ M6 h6 ^
- digitalWrite(2,1);/ L, C. e D) ~: H
- delay(300);
2 T. h; \7 C$ x# G - Serial.print(".");$ T4 q8 Z: v& T8 J# q
- tryNum--;1 N( D& e' l Y2 c
- if (tryNum == 0) {3 V! i4 s2 ^1 M6 N/ V$ P
- // 1min% T- e9 v8 t7 t9 Z! b+ O' b+ d
- // ESP.deepSleep(60e6);9 ?' T4 x$ d& r9 \
- ESP.deepSleep(0);# d6 J( R& \3 a9 E3 K, U7 a
- }+ A8 ~1 E4 @6 m; t. Q8 k0 [ l
- }
0 o8 E, `( K6 }- M! M' _ - Serial.print("\r\n");2 b& M# m7 s7 c
- digitalWrite(2,1);
3 n8 I+ {6 }. M* G% P - Serial.print("IP address : ");
1 R: o' A$ c" S: O: f, r! \1 N$ @ - Serial.println(WiFi.localIP());
# u& O& a6 z$ c5 Q - server.on("/", HTTP_GET, [](){% m+ G/ O# ]8 f6 V- f b
- server.sendHeader("Connection", "close");
& C: k3 J# O/ U3 U5 t - server.send(200, "text/html", serverIndex);% h9 ? `( C/ h) v! E
- });/ s7 V" {$ a) b0 @% ~" D
- server.on("/update", HTTP_POST, [](){
7 k5 ^' l' F/ v4 A - server.sendHeader("Connection", "close");
- s0 a, R+ }4 q' @; [. y% O3 _' ~ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
; [( ^- b) i: W+ ? i ? - ESP.restart();
& \5 Z/ l% q7 U2 r1 A3 I - },[](){
: T$ X* o/ A& E! {1 r& m - HTTPUpload& upload = server.upload();
* o; J& W+ d9 V0 w/ j - if(upload.status == UPLOAD_FILE_START){ t) J. B9 P/ M) q3 ^4 g
- Serial.setDebugOutput(true);
( E i- O3 }8 U; g$ J - Serial.printf("Update: %s\n", upload.filename.c_str());
0 m* a2 p {2 V8 C - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 ?6 h0 T: l2 e S1 u - if(!Update.begin(maxSketchSpace)){) n, x2 u f4 b+ z; F4 h
- Update.printError(Serial);1 o& C: Y- A3 a# J
- }
/ T% _ q6 c/ R) | - } else if(upload.status == UPLOAD_FILE_WRITE){
6 v7 a L- ?' ^ Q7 y% P: r - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: I5 @) a& R. w; q5 N# D# i - Update.printError(Serial);0 G* E3 g- Y a; Y) M0 o
- }; e4 }4 e$ F2 a" T% _' s: Q1 m
- } else if(upload.status == UPLOAD_FILE_END){
7 r; Z+ L& p& N0 C7 H - if(Update.end(true)){
, |( I- k/ I. V! h* E - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 i- m# o' A9 t5 h8 \: H6 r3 ~0 { - } else {# d( p) T6 U" L" s
- Update.printError(Serial);
$ R0 w8 [' T+ q - }
; X# T" I/ [; o! _# d - Serial.setDebugOutput(false);
& {* z1 h$ p t( E6 p9 d( b - }! g5 I6 o D$ W- j4 _# `
- yield();2 x; N/ Z# \; y/ Z& G a
- });8 J! j9 R( V, k, J4 p
-
% X/ K& D5 W% u - digitalWrite(2,0);, W8 `. \5 I6 r t" ?# R" O9 S
- mainAction();
2 S& `6 g* s! ^( m! P - if (digitalRead(0)){9 s) o$ w5 m4 m; S: s1 n+ p3 u
- ESP.deepSleep(0);+ w0 `9 p" w# A" _; f
- } else {% ~# Y* K" U( }) N
- server.begin();5 c+ Q# l# G; J
- }
( j7 ~: w' g, e$ G2 o$ U - }
0 e3 p& p$ \8 x - void loop() {
$ ?8 H5 k. m P: y5 ] - server.handleClient();
% j: s( A0 F5 ]! _& F - delay(1);
7 {: U, c; n; H5 ] - }! {) O$ z% P3 [7 K" s9 P; ]5 s
- String doGet(String url){
2 a# J# N( L: V - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 I( _" n4 R4 ^ ~% Q! k q2 @ - HTTPClient http;: c3 W: U+ ^" G$ J
- Serial.println("[HTTP] begin...");) s& g0 F+ C6 ]4 A% M3 s
- if (url.startsWith("https")) {
0 l }# ^* A% e. p - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 Y/ r# P _3 S9 O. c. X
- } else {
L, V8 @1 q) r- K - http.begin(url);
8 Z; H8 {7 ^" H- r: E - }
. ~8 q3 P- z% R0 L/ f - Serial.println("[HTTP] GET...");
7 }; _2 E4 C& V* J - int httpCode = http.GET();( W' l2 [ R$ p4 l; y
- if (httpCode > 0) {
1 z+ O2 B) ?8 s - Serial.printf("[HTTP] code: %d\n", httpCode);* V5 P+ x: A F" L- L
- if (httpCode == HTTP_CODE_OK) {1 L$ Y2 z; G4 j' ?. t) I' ~6 L
- String payload = http.getString();
i. `& O4 t% n, R - Serial.println(payload);1 L7 _7 S3 k5 @' E' Y! D( j, i7 i z
- Serial.print("\r\n");
8 B7 h4 k. K9 O& l - return payload;& p8 C' P% q% Z
- }
; X3 `$ R) F8 C2 Z- s - } else {
, i" G0 Q, U, ~3 t' |. b - Serial.printf("[HTTP] GET... failed, error: %s\n",
. Q; _' k' S; l; c8 ` - http.errorToString(httpCode).c_str());+ B, |6 h9 R5 G0 }; ^7 m. v0 M
- }
. {5 _( S4 |: T2 g8 |- e) O' P V! o - http.end();
6 C- T& e: L. Z) t M. s) `4 D3 @( T - return "";
; ~( O' \$ K5 _; g4 R - }2 f! \/ |9 Q- n2 g/ L
- }# }- D/ |, G8 @1 a: C7 [# j
- void mainAction() {
9 b6 i5 Q: W4 g/ @! |. T - // 发送请求
6 p! D6 O9 B8 f9 b! s; U; Z# M - doGet("http://google.cn");
7 q$ \2 J5 Z9 ?2 n; _) S! u - }; p: R% j: T# k- e- u Y! V
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