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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)$ ~( ^% d/ p3 v; W5 {) y9 n
- #include <ESP8266HTTPClient.h>! ~3 V6 R5 E; v- U! D
- #include <ESP8266WiFi.h>: c7 w$ k+ `6 D9 W8 R+ _3 z
- #include <ESP8266WiFiMulti.h>
/ p1 F- a$ m" z. e - #include <ESP8266WebServer.h>
: ]! m$ l0 ^: @. C - #include <arduino.h> W, s0 w9 o9 p# x# @! I* g
- ESP8266WiFiMulti WiFiMulti;
% }5 S+ h1 `- k* C& g# b' i1 a - ESP8266WebServer server(80);; e* |; s f- [/ I y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ \$ ?4 |7 Y$ [0 [+ C6 H
- ADC_MODE(ADC_VCC);4 L& I! L- l5 p! ]8 a' g" n# E# I
- void setup() {
" c- w1 F2 o. t' \/ O, u. X+ K% ^ - Serial.begin(115200);0 F( K, s1 s7 H- J, |
- Serial.print("\r\n\n");; F! n; [! N8 x, V
- pinMode(2,OUTPUT);
9 q# p X0 T$ I - // WIFI6 ^; W/ @5 w k- S/ u1 z
- WiFi.mode(WIFI_STA);
0 g% V0 g, {0 Q% B$ p: i - WiFi.hostname("Sparkle");0 }) U/ n# ^; a4 q9 M
- WiFiMulti.addAP("wifi ssid", "wifi password");
- E2 q3 _- r. f3 J - int tryNum = 15;3 L, N* G; F/ S# [, s" w
- Serial.print("Connect WiFi");
- g* B8 X8 M' E3 N6 M- ^ - while (WiFiMulti.run() != WL_CONNECTED) {
' a+ G: [) H- j7 r w+ v - digitalWrite(2,0);
( s, ]; W3 a+ n8 F# i4 m - delay(200);
. y0 s# O6 C$ s) l. ] - digitalWrite(2,1);
# F+ ]$ P* B2 _7 K0 l% O4 _5 f - delay(300);$ d( o a# e0 M/ \
- Serial.print(".");1 N3 {- a9 W- ?$ P9 S/ ~' u2 }
- tryNum--;; G0 V/ a" ?% C# L: w
- if (tryNum == 0) {+ `+ m) v3 e& D; D( x5 U, F" N
- // 1min
J b- J2 n# b0 J - // ESP.deepSleep(60e6);' {" W6 Z% t; `) E( W/ {
- ESP.deepSleep(0);, g1 K/ i# G% @
- }6 u6 y2 {8 K b& M3 ^
- }5 X' B4 q$ @5 \* ]' R6 `# @
- Serial.print("\r\n");2 ^9 Z4 Q( f8 }& b4 q! E7 C, y0 d
- digitalWrite(2,1);! h0 m% v# I, ?0 R/ q
- Serial.print("IP address : ");
) C4 \/ M5 B) I3 o& d - Serial.println(WiFi.localIP());" w& x3 z: O' ]' u7 K8 b6 M: r; j# `
- server.on("/", HTTP_GET, [](){
& F8 e( R+ t% e" s3 w9 i1 t - server.sendHeader("Connection", "close");+ M9 Q, G8 F1 K. {
- server.send(200, "text/html", serverIndex);
6 `) e8 a- Y9 {5 q. l0 K - });
# ?5 l/ F( f# o" f8 D) x - server.on("/update", HTTP_POST, [](){
. K8 f# h8 M, c* `; C. V - server.sendHeader("Connection", "close");
2 A8 d2 \% P% v+ E* y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 X3 Y$ a" e% Q0 D7 l6 f# w
- ESP.restart();
$ y1 V. Z8 a3 t/ e/ m" n! M - },[](){9 @) K( V6 b; f# G3 X
- HTTPUpload& upload = server.upload();
. p3 q: j6 }1 f& L - if(upload.status == UPLOAD_FILE_START){
& p) e9 j1 b! x4 E0 _) c# {, C - Serial.setDebugOutput(true);- F/ e) e. `* Z& N, h
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 k& O4 N0 e7 ^7 y3 r7 p9 W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 L7 R2 D: C! t# o+ D - if(!Update.begin(maxSketchSpace)){
! z3 {/ u u, W9 Q - Update.printError(Serial);
8 v# J( U( h# P% Z, J- Y' | - }
: R* N" g" Q% c- j( f9 W; b - } else if(upload.status == UPLOAD_FILE_WRITE){6 T+ B4 f8 d" ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" M3 t( d8 C3 |' v - Update.printError(Serial);* _8 l1 N, q' @! ^! F i3 }( J
- }8 ~8 M. Y# x9 m; [
- } else if(upload.status == UPLOAD_FILE_END){ W j) x* {0 g. y9 U
- if(Update.end(true)){
* V* b7 P5 A: V. k' L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 g$ Z8 t; R3 D - } else {
) F6 u9 O5 t0 Y3 g- n - Update.printError(Serial);! t- _3 ~% d3 t& N
- }
7 [- t7 _" Y1 j; i9 ^1 B( F - Serial.setDebugOutput(false);
9 F$ D4 m$ @: m- q - }8 v, H: g. }* K4 | }
- yield();0 H6 a3 r& x7 x4 R& `2 {
- });
1 `6 k2 M% Y/ m: H1 f3 F, |0 q6 g -
% X) T0 L/ S/ k6 v |1 ^& [/ s - digitalWrite(2,0);& g4 k* z" H6 l5 s
- mainAction();/ G4 ^& U/ f! @8 |9 N" ^# B% P
- if (digitalRead(0)){. k* f- {9 g& d/ m
- ESP.deepSleep(0);+ I5 r& n+ m& ^+ R3 D
- } else {' X5 M& e$ a$ z3 L! i
- server.begin();
. W1 [" d+ Z) t3 F' q( C& c1 X" p - }
9 R- g8 @2 h$ e2 W" U$ I - }) b0 F0 C- }* m7 S% j. {
- void loop() {8 o$ e) J& ?4 M, Z z
- server.handleClient();' e) u+ i, |7 H; y6 T1 W+ O" x
- delay(1);5 d% N; @# L3 E {# i9 @
- }3 w/ x+ Q3 M! t3 ?( ^6 W
- String doGet(String url){' N0 s; l( c' H0 R% X& P$ f
- if ((WiFiMulti.run() == WL_CONNECTED)) {' q) G3 z6 K5 L3 m) _" h1 `
- HTTPClient http; i8 A; r9 m$ }3 M; o0 v
- Serial.println("[HTTP] begin...");
* C9 C: v9 o1 ^5 g! {( } - if (url.startsWith("https")) {& X- E9 N0 v1 W" k4 A. ?6 M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( ^7 N( r& `; y: J - } else {0 k% F8 n- `5 Z5 X% F/ a
- http.begin(url);0 R% b* y# Q4 J7 t# d; p
- }
6 |. e3 R# o! ~0 q \6 m - Serial.println("[HTTP] GET...");
+ f9 o; J; w( e - int httpCode = http.GET();
* v8 t# }+ g/ B; ^ - if (httpCode > 0) {
* F/ u: E4 }8 V5 s - Serial.printf("[HTTP] code: %d\n", httpCode);
8 y+ a, Y7 v* { y- v R5 t - if (httpCode == HTTP_CODE_OK) {- m% ~0 I; Z) V1 F% l% w3 {
- String payload = http.getString();7 S2 J) ^7 t: f3 W3 \$ \+ y- X& ] I6 ?
- Serial.println(payload);
E0 o @) _. u! T" X$ R - Serial.print("\r\n");
( m: v! o6 _% p5 k" l - return payload;# S6 i- c5 Z6 U& d- C( _
- }
, S# {1 W3 a& F* l, \& B/ u - } else {5 K! Y9 q% M/ W+ I0 k9 G- |
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; u* Y, \% P6 |% l - http.errorToString(httpCode).c_str());; E; k1 D5 X0 c! k
- }
" h8 ~' ~% N' R+ l" a( h - http.end();, l" Z: m( D* m4 u! Y
- return "";
1 c0 O6 `8 U8 Y1 ^$ x- n* G) Q - }' [3 E6 `0 f v# J
- }2 D+ s: T" J9 G- W1 ?7 s
- void mainAction() {" Y5 n2 {* e* B: t$ V& M+ n; ~
- // 发送请求" Z4 U/ A* j' b4 V/ w1 n
- doGet("http://google.cn");7 Y) {1 o7 n5 O. {* Y/ E" L) `
- }
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