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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)
) i( j7 C9 n5 S- #include <ESP8266HTTPClient.h>
2 Y* K; R7 h1 t - #include <ESP8266WiFi.h>
# g3 I$ ?# y+ Y% b' h; V - #include <ESP8266WiFiMulti.h>+ J; h7 C7 |$ i' e3 ]5 {6 e; m
- #include <ESP8266WebServer.h>
' u9 K' n# C! G1 Q- n2 Z9 k9 i7 ~ - #include <arduino.h>
! _, f8 \7 o6 P. I - ESP8266WiFiMulti WiFiMulti;1 T6 t w: L1 s/ A
- ESP8266WebServer server(80);
; I3 m, g2 F- a0 s$ K5 E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% s8 U5 z" E, u' L+ G7 J& a - ADC_MODE(ADC_VCC);' j4 [1 N* j; n* C% }/ M
- void setup() {
. t" d1 A0 m, N) k4 f: { - Serial.begin(115200);* G5 \/ t( V" C: I, y
- Serial.print("\r\n\n");$ s3 D) l0 u8 I
- pinMode(2,OUTPUT);1 a+ b8 g# j1 q
- // WIFI
$ O) j* i9 ?: J& X - WiFi.mode(WIFI_STA);( b1 v2 b0 G, m9 N
- WiFi.hostname("Sparkle");
/ y2 i! M( ~& P {% Z - WiFiMulti.addAP("wifi ssid", "wifi password");: h5 d0 W% S" m8 _0 k; e
- int tryNum = 15;
4 h9 \ n8 k8 q( K& X - Serial.print("Connect WiFi");
: E5 f* i0 ?+ Y }8 T2 Z. l7 l - while (WiFiMulti.run() != WL_CONNECTED) {
4 Z' \. V$ K5 M5 _7 p" p - digitalWrite(2,0);- B0 I) u2 q: H; o( g
- delay(200); A: t7 I2 Q) `0 F' h# w
- digitalWrite(2,1);- W& }3 t7 B; D
- delay(300);, M8 u- I" W0 O, n% w8 J/ D
- Serial.print(".");+ i, S2 G W/ q3 c) [7 a
- tryNum--;
9 f+ P3 O% e6 C* }1 e - if (tryNum == 0) {
! T1 X! R9 W- K - // 1min$ z8 d- |$ x3 @% J
- // ESP.deepSleep(60e6);* Q1 Y! S' f0 n8 _9 c
- ESP.deepSleep(0);
I. D J/ C+ s, } - }
' @; N6 v1 ^, }6 |; `7 N' ] - }/ K; T! T8 L7 w& O6 X
- Serial.print("\r\n");
Z! q r: n) g; f t - digitalWrite(2,1);
# P# R6 ]7 {* \8 F/ r/ P - Serial.print("IP address : ");- W7 ?4 }! g1 d0 e
- Serial.println(WiFi.localIP()); p8 i" S" U& K6 v% ^3 H8 p
- server.on("/", HTTP_GET, [](){
8 [. ]# [2 |, |& e- A - server.sendHeader("Connection", "close");% M: P/ D7 Q, ?: m+ O3 _& Y
- server.send(200, "text/html", serverIndex);
% F: X) b* M3 i! z# J - });
- g) f5 m8 P5 I- _. Q) w - server.on("/update", HTTP_POST, [](){& ~0 w( a" J4 H; l' \; n
- server.sendHeader("Connection", "close");! }9 y# L6 Y1 N- B8 P6 \9 I4 q% P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, K) i* _" j9 N+ Z
- ESP.restart();! J7 _! L$ y- V0 [6 |
- },[](){% r# P8 o* W5 P" k% s2 U
- HTTPUpload& upload = server.upload();
' t* L- a5 N9 x8 x1 B - if(upload.status == UPLOAD_FILE_START){
c6 w: V. t6 Q - Serial.setDebugOutput(true);! _0 P8 u4 V7 m5 ?/ I7 O
- Serial.printf("Update: %s\n", upload.filename.c_str());/ l! j; F! V) b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 G2 S" m j5 M: v - if(!Update.begin(maxSketchSpace)){3 C: c3 \' z! A7 B( M+ h
- Update.printError(Serial);' i- \( C) y$ g: E( a
- }7 w! b" l/ h$ A
- } else if(upload.status == UPLOAD_FILE_WRITE){7 ]2 h y+ V3 x t) X. I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, J' u9 S4 }. d5 M2 `/ u
- Update.printError(Serial);: @6 I8 Y( |$ Y% d. E+ n. w
- }
% g9 i7 w, `6 d. f - } else if(upload.status == UPLOAD_FILE_END){7 f7 p, o+ x, v1 J
- if(Update.end(true)){" R$ t' R4 O( G) F. l# Z& |+ N p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 x1 H7 j# m) N2 Y+ W8 r
- } else {7 o5 M0 {/ a `8 ~) u2 i
- Update.printError(Serial);& q* A( T2 G7 s3 c, F) X+ b1 M, U( `
- }! H( f/ C3 x! A3 j7 m
- Serial.setDebugOutput(false);# Y4 z: T& l0 g4 E
- }+ O5 A" k7 H) o8 H( u! D9 Z& s
- yield();- Z! b5 W% M5 _* w3 ^* S
- });
5 ?9 K. Z" r6 L. `/ C -
' M) \; \6 h( `/ ?1 {* B: J - digitalWrite(2,0);
2 K7 Z! \9 \; t$ @* x - mainAction();& w" x( Z d6 Z
- if (digitalRead(0)){% u7 i& N; D' |4 X) e7 I! l
- ESP.deepSleep(0);% `. I8 M, Q$ G! Y" m1 X7 r
- } else {
4 H% @5 i" J9 A - server.begin();* x; M4 e3 V5 ^8 U2 o
- }$ R- D' ]5 s1 T# |* a( f) s
- }
: B9 [9 g1 K- } - void loop() {
* p$ Q$ k0 Z/ v3 i6 u0 {( u3 ] - server.handleClient();8 O! y) H4 N P0 A5 `
- delay(1);* z' R) D7 X; e9 S
- }
- }/ L, V% M& ?) ~' G - String doGet(String url){/ e7 R: |+ ~4 W& J% d+ ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, b1 c: ~% V e0 j% H9 X: d - HTTPClient http;2 D. ?: p2 a' V* C: r1 q
- Serial.println("[HTTP] begin...");0 E% W1 z& D& ^ j
- if (url.startsWith("https")) {
6 f9 x9 n; V9 t- k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 z6 F% Y2 j4 U7 G7 J6 x y, O
- } else {
9 l. D4 Q1 m& B P2 o4 C- V1 w2 N - http.begin(url);" O3 Q; M9 c* Y) ?0 {
- }
. j3 @! E+ c4 S( F( ~2 J+ e - Serial.println("[HTTP] GET...");% n5 a( W7 y- N2 X8 h
- int httpCode = http.GET();
( g# u) P# D& A - if (httpCode > 0) {
: }2 b% g6 z7 g. d9 C& `( ?/ @! I, x - Serial.printf("[HTTP] code: %d\n", httpCode);2 c! U2 J2 T( M4 _
- if (httpCode == HTTP_CODE_OK) {0 _* ?& }7 m1 \ h( y
- String payload = http.getString();
8 o$ X" z8 a, }1 n; Q - Serial.println(payload);
& r) H, E8 t6 e* l1 Z" Y( u% ` - Serial.print("\r\n");
/ e% o: E# _3 \3 s - return payload;, I; `: v4 a% y
- }* e1 b0 ]' Q4 \6 \& f9 u
- } else {
8 d" j6 n. c# X. V/ \ - Serial.printf("[HTTP] GET... failed, error: %s\n",, q# v! A* K' o# p: K8 V% ~1 O
- http.errorToString(httpCode).c_str());
6 C8 ]; j7 q" N4 \ - }. d& l2 B% Y' D; l$ U$ b& k
- http.end(); h4 r @' j/ c& {
- return "";
9 [" ~- u- a# L+ ]& V( A - }2 N! L2 V. |5 G3 ]
- }
+ f8 G9 Z2 m, J& a# S6 S - void mainAction() {
1 U; ~! S n5 q; J; o7 L \9 K1 } - // 发送请求3 q1 m% Z U, g. }' I5 C2 u
- doGet("http://google.cn");1 d; `/ g9 t( ^- u$ S5 _; J
- }3 H7 g+ r" `" W
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