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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)
6 b9 @6 Q7 O ^4 S% @% l- #include <ESP8266HTTPClient.h>, O( J+ p2 p% b5 H6 l$ h8 ]
- #include <ESP8266WiFi.h>4 B c# W% l# e
- #include <ESP8266WiFiMulti.h>
: { r3 H$ F: L' z2 @& q9 u B - #include <ESP8266WebServer.h>7 U5 B. ^5 k1 [: h; r
- #include <arduino.h>' y, \3 M3 y7 u$ r
- ESP8266WiFiMulti WiFiMulti;' X' C9 e* ~2 t
- ESP8266WebServer server(80);
4 @+ @$ c0 d% c: E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 Y6 P ~1 `( y) {$ o+ l. _) ^
- ADC_MODE(ADC_VCC);& K' Y" J" b! l
- void setup() {+ [8 w+ W- T- p
- Serial.begin(115200);
$ ` H* \0 }2 @ - Serial.print("\r\n\n");6 a# t( v ~$ ?& a' u6 m, i& Q
- pinMode(2,OUTPUT);( S8 c4 z' P- N& a$ ^! d
- // WIFI
f! }4 E* B3 |& s' c K - WiFi.mode(WIFI_STA);
% o3 _1 v0 `' D2 O1 g - WiFi.hostname("Sparkle");# N- w: F8 W/ S; Q' e' _9 V
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ @0 `1 H' d& S0 @ - int tryNum = 15;
8 a3 R* s" _" c$ s! g6 ~5 t: a - Serial.print("Connect WiFi");9 `& |* Y) T$ Y8 h& E
- while (WiFiMulti.run() != WL_CONNECTED) {
( X4 e# X+ W' W7 P - digitalWrite(2,0);2 i# U6 b9 @- }7 z' @* b8 ?' d
- delay(200);* x6 j% U- e2 ?% F( e. t
- digitalWrite(2,1);0 `% G* F3 s" L7 m
- delay(300);
~' H. `) |3 d. D, Y' I - Serial.print(".");. W% b3 g! M, r H, R6 {
- tryNum--;
) h7 _2 }/ T; G: T. Z& t5 E - if (tryNum == 0) {
- ` b- j; }1 S/ t# x9 f8 P - // 1min
5 r0 L. D0 C6 ~2 P/ |+ f3 s - // ESP.deepSleep(60e6);
8 {! f+ G) k2 X+ J C - ESP.deepSleep(0);6 L5 K$ ^* x0 p5 X
- }- ~0 w1 Y2 J- e. w& E5 h3 n1 k2 F. K: {
- }
4 ^ j0 L7 V# F6 N1 C( k% U - Serial.print("\r\n");0 G$ \7 @$ R! o9 L, R+ u
- digitalWrite(2,1);; x) k, Z7 R1 u* H
- Serial.print("IP address : ");! @" b; U0 ]& N5 M4 t
- Serial.println(WiFi.localIP());6 ^" Y# Y& x9 y; ]2 R9 e/ B
- server.on("/", HTTP_GET, [](){9 _) y: K x/ g8 M9 H- H" M) V' g( Z
- server.sendHeader("Connection", "close");
; Z5 C& h# T' |! y8 U5 I - server.send(200, "text/html", serverIndex);
: n9 D% `3 R% U# P& I; [# P+ l% T - });
. Z" F$ v3 `3 M+ [' | - server.on("/update", HTTP_POST, [](){
6 T' D. q r/ h0 U6 N/ S3 s# z - server.sendHeader("Connection", "close");0 ^+ e" c5 k1 A, q. G
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, ]2 D2 S; u3 P2 f* t - ESP.restart();
: v4 I/ }1 C7 P( |" y# U V - },[](){
- T6 z* E c+ v. z. t" O - HTTPUpload& upload = server.upload();- f1 H, }- r. e& I) \* w
- if(upload.status == UPLOAD_FILE_START){
4 i. N$ p: M5 \$ i; E/ F - Serial.setDebugOutput(true);
! C$ l4 s# b# C& o) {9 z - Serial.printf("Update: %s\n", upload.filename.c_str());# P& L* j8 j: \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 b# T4 T! z3 ]& o- W
- if(!Update.begin(maxSketchSpace)){6 p; X! y1 W' b
- Update.printError(Serial);* y, Y, {+ M& u# Q% `/ k
- }2 Q) ~, c" d! v; i3 ^/ d" l8 O
- } else if(upload.status == UPLOAD_FILE_WRITE){
: [& \0 K( t4 `: H( f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ u' k& {$ P, \6 i- i- e - Update.printError(Serial);
4 F- e# ~! U" {5 r - }
! b* d- M. y! P: L+ O - } else if(upload.status == UPLOAD_FILE_END){
7 N2 O. B" ^! z+ B' X* N9 ] - if(Update.end(true)){( w m8 k, p) c7 S7 h' D/ D4 W+ G
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- X+ N# P3 Q1 k7 F' r5 v9 G0 l - } else {7 i- W* E) e' b5 y8 |7 e
- Update.printError(Serial);
d4 z5 Z2 y7 u4 C! ~7 L - }0 j4 y2 E; D; I8 {7 ?
- Serial.setDebugOutput(false);1 z% k8 i! q2 X! l3 b m3 m
- }8 Y# u: t4 z3 ~9 ^; L
- yield();
% R1 w# T% |( Z7 y - });
1 m- \" g$ W9 z$ M7 i -
5 Q) O& a% _ a( p1 T - digitalWrite(2,0);
5 ^7 u3 S7 k% \. I9 r - mainAction(); z2 Q8 s' u* Q( i$ c
- if (digitalRead(0)){
: T9 W- f7 c% N3 @0 A+ Q - ESP.deepSleep(0);
5 W- T# j* K" {( c: a( A* S - } else {
! s6 c, G9 w- A2 m! S+ A - server.begin();
; d) I% t. J( y - }" e1 C# L) A1 ~, x8 u# j0 u
- }
8 h+ ]/ I* C9 X8 A, [1 \ - void loop() {! ] q" @# G, L- i0 J
- server.handleClient();
" t& b, V6 D; Y0 `' V# }8 U2 z$ x - delay(1);
. I. G8 x8 u2 N3 k" w7 F6 \ P - }3 a" _; S4 z. X( ^
- String doGet(String url){ [$ r2 b# o% k) p3 c
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, B3 {5 ~; `2 }$ { - HTTPClient http;5 m& |+ Q) o4 _) [& }4 r( e
- Serial.println("[HTTP] begin...");$ |- Q' _! S' z( B% c5 `0 b
- if (url.startsWith("https")) {& u. ^. Z8 _7 k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ V" e8 r" j& d# [& e1 j
- } else {$ @% e! |/ p6 J6 W7 S
- http.begin(url);
# q* h3 f9 I5 K7 b4 a" ]4 u - }
1 t. L( S! k& f: D: @ - Serial.println("[HTTP] GET...");
% I/ R. g S% w) I - int httpCode = http.GET();% ]2 \, F' m# ^
- if (httpCode > 0) {7 P0 G6 h1 o( e. D' B
- Serial.printf("[HTTP] code: %d\n", httpCode);
( W1 p, u( {/ H - if (httpCode == HTTP_CODE_OK) {0 A' G# F5 V! t
- String payload = http.getString();5 v& d' u+ N$ T, Q6 \: f! q
- Serial.println(payload);
5 [$ m3 p1 {6 U) y/ P+ A - Serial.print("\r\n");* `! h# l7 r1 v/ X A- u
- return payload;4 P# S2 D+ W( P5 v( S+ v x
- }
7 p1 i, F1 k5 f! H9 D) ` - } else {
9 r: e7 k1 Y7 L1 O3 Z* g( N- ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ H9 h ]' U1 t) |7 W - http.errorToString(httpCode).c_str());, f% V, H; B6 p' o* k- I: T# q
- }. h) ]3 `' k' v; g% j6 }5 k
- http.end();
" t. c/ p2 F. y; n - return "";+ n( f+ L2 y6 T$ v
- }
9 E, ^' ^' l/ d4 h4 U+ A - }
: ^$ @6 I- w# a* K - void mainAction() {
/ x+ [7 r0 e4 d' e - // 发送请求
: V; P7 k$ M Z2 p; f - doGet("http://google.cn");. `; O) n9 p* _
- }
- P2 H& e3 L1 f3 ?
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