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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)
! o5 [0 R' Q' c) h* L# _5 _- #include <ESP8266HTTPClient.h>8 c9 w+ a9 q2 W6 d; e/ u( }
- #include <ESP8266WiFi.h>; J% I4 z# U, y% b$ G
- #include <ESP8266WiFiMulti.h>
- U- [$ h" w2 i/ ] - #include <ESP8266WebServer.h>
. O* U! }: |2 V( S - #include <arduino.h>: e5 Z. `1 j) h, `- q
- ESP8266WiFiMulti WiFiMulti;
! N+ i9 R) z' L3 |" P% X) ?% n( e - ESP8266WebServer server(80);
& [3 O! H& a8 i* B k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 d, r1 G) b* c! F6 E" P
- ADC_MODE(ADC_VCC);
; w5 t2 i- L- g& f/ \ - void setup() {& B9 |. \5 n7 |6 m
- Serial.begin(115200);
5 N' r1 U5 w4 h7 E - Serial.print("\r\n\n");
: v" ]( C$ w/ S [ - pinMode(2,OUTPUT);+ b( N% i: i+ u3 p3 A N- e" f
- // WIFI+ f' p6 N4 }4 T& u/ [ L4 v3 r7 r2 Y
- WiFi.mode(WIFI_STA);( `- ]8 w0 q1 t' u
- WiFi.hostname("Sparkle");8 V- y8 g, d' r4 k8 c$ h4 z
- WiFiMulti.addAP("wifi ssid", "wifi password");
& b/ j4 o1 Y3 |" r - int tryNum = 15;
8 M3 O' |4 K: w; l1 \- b, [5 g/ { - Serial.print("Connect WiFi");# F/ ? o" z5 k6 Y
- while (WiFiMulti.run() != WL_CONNECTED) {# K4 d, U' l: m$ A2 ?
- digitalWrite(2,0);
9 o8 {9 K0 r) u& I0 U6 e% I - delay(200);( Q/ q0 ?3 a% j" h
- digitalWrite(2,1);
2 u J+ M/ t( F; A, A; b3 \" Z: I - delay(300);7 h/ Z& _& v1 @6 i
- Serial.print(".");# {9 p0 \, _. _1 R4 l$ w& K: e
- tryNum--;; H7 I6 y! m+ |- D# n7 U2 J
- if (tryNum == 0) {3 g4 I+ i1 e9 {
- // 1min+ F+ A* w2 X1 R% P7 k& {
- // ESP.deepSleep(60e6);
* V" T3 }9 ~8 E0 e - ESP.deepSleep(0);
) U, U7 K' K# _- C' T6 @ - }$ J6 K5 ^9 i5 g- }
- }3 u. Z# e$ F# c, B
- Serial.print("\r\n");
; A. L( ^5 m' r+ |7 n4 K - digitalWrite(2,1);% s1 F: B1 r# p {" Z
- Serial.print("IP address : ");
# s N ^; G8 t Z( a - Serial.println(WiFi.localIP());
6 K- O3 C% C. R j" B" m - server.on("/", HTTP_GET, [](){" C( \# T* N2 {% d8 u7 c
- server.sendHeader("Connection", "close");4 P; `- d0 ^0 D ~
- server.send(200, "text/html", serverIndex);1 c( z" _" _ |/ B7 F
- });: o$ ]7 U9 O7 a2 p0 L
- server.on("/update", HTTP_POST, [](){
3 o# m0 ~; q$ G2 z$ L0 A" P- |6 ` - server.sendHeader("Connection", "close");' q1 `7 K+ o( k' @* t7 g \, C
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); H" y; k2 c& o& V% W
- ESP.restart();
. Q& O, U) u) J) |3 p! F6 ` - },[](){3 ^0 F- U. p$ l; y
- HTTPUpload& upload = server.upload();$ e2 f3 o3 p$ j! l0 |" f3 `0 k
- if(upload.status == UPLOAD_FILE_START){
) `# `$ p' x7 n9 f) w - Serial.setDebugOutput(true);
+ r A% w( G5 p, l% h! ~, A - Serial.printf("Update: %s\n", upload.filename.c_str());
9 t3 x8 m5 I- d" S& q4 H0 Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 ~' x3 ]0 z" Z5 U' M
- if(!Update.begin(maxSketchSpace)){
3 k6 D9 ~, \7 O ~$ i! C - Update.printError(Serial);
9 t: e- P8 c- ?8 e: ` - }
8 z1 ]3 t/ t1 r - } else if(upload.status == UPLOAD_FILE_WRITE){
9 M8 U( R" c" T - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% o0 d; t8 h% N$ K) e7 ?5 H - Update.printError(Serial);, x; [4 ]: D5 B( m& B0 U
- }
$ U( ]* R* \4 w1 N4 o- n" W3 \" _1 k1 E - } else if(upload.status == UPLOAD_FILE_END){5 v! v9 t' ~8 h P4 f% o
- if(Update.end(true)){- O7 |( Q s* F5 Y6 x* Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) p& s7 x3 p- T! C; J4 g7 P
- } else {
& f# j8 w5 N: l7 F0 P - Update.printError(Serial);0 f6 s. M( f w5 _$ x
- }- p6 a9 z9 R* p
- Serial.setDebugOutput(false);+ h$ f. i* ^# L2 x4 e" H' H7 }
- }, w0 W1 c, L$ U7 M9 K: S! B
- yield();
1 y; T5 H* X2 k+ Z; v6 z% j# M - });- Q+ ]# ^' A$ q6 F# p1 j
- . Y) H6 k3 y* H2 {; J8 s
- digitalWrite(2,0);: b9 ?$ p" \1 |1 j
- mainAction();8 u8 t8 U* B& Z
- if (digitalRead(0)){5 |! |8 k0 t \0 R* I. z4 A& [
- ESP.deepSleep(0);
8 ?& ^9 q+ a+ L$ ` - } else {
0 W0 ^4 V: \6 l" q - server.begin();, C# k- t% c8 H& A
- }
6 h+ ~6 t2 O( Y - }/ B$ d m* R1 _( b, n) Z- H" r+ G
- void loop() {
9 e- [ k( Y/ [2 K% L6 S - server.handleClient();$ e: Z% U; c5 L& f( d
- delay(1);/ L8 X' L% @/ i" n$ [2 i; q) @) T- x
- }* y+ I" [& N1 t0 m
- String doGet(String url){( e c9 j b2 O' W8 @6 ]$ F, l
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 G+ Z8 L& f1 N - HTTPClient http;
$ z( t4 h! A2 ~; A$ C - Serial.println("[HTTP] begin...");5 z* M7 z; ~0 Y0 }) L
- if (url.startsWith("https")) {
8 P3 m( T( g b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- ^4 L. W9 o! t3 b8 @4 m5 Z
- } else { g k; G/ S/ j, t) l* Z/ J" o: M
- http.begin(url);/ W: r9 b" `- D& P
- }
# o! p7 q5 p; A% u3 |* c# L - Serial.println("[HTTP] GET...");( }' m3 o6 j6 _+ b' a$ \/ j
- int httpCode = http.GET();0 M$ P* G+ ?' V n
- if (httpCode > 0) {8 c1 E" Y! C% l+ B+ K9 K2 d* g
- Serial.printf("[HTTP] code: %d\n", httpCode);/ C \" R3 d6 I/ b
- if (httpCode == HTTP_CODE_OK) {
4 k0 N' v8 U7 k* B# r9 d - String payload = http.getString();
1 @2 n# [; @7 J; o5 {" }+ x/ { - Serial.println(payload);
8 D9 z D3 c8 b0 |4 E6 t - Serial.print("\r\n");- e9 b8 N. ^; Y K" G+ o4 |
- return payload;. L5 Q% H1 T: H# z$ K2 R+ @. U5 K
- }: I) }: X) w: u" z
- } else {
5 T4 A3 e! F0 s1 K' W - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 t1 b0 A- m# s W - http.errorToString(httpCode).c_str());
0 J; e( b% B2 k: Q8 O. e8 f/ l - }4 d5 m% M$ w8 [$ F0 O9 J V
- http.end();% N& W; i; k2 Y
- return "";2 y4 j4 f* P: S
- } c" ^& \, \0 [ f7 t- D3 h% ?
- }" g8 h1 ^7 c8 v9 [+ u! @
- void mainAction() {; E5 ]1 }6 p; g: d
- // 发送请求
. f; u' w! x3 q! Q) k* A - doGet("http://google.cn");; H/ Y% S9 {& E$ k# s- @
- }
7 h, U# h# `+ J% q, E8 d' _
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